Top 100 US Patents in Catalysis, Colloids, etc.
section b - performing operations; transporting > physical or chemical processes or apparatus in general > chemical or physical processes, e.g. catalysis, colloid chemistry; their relevant apparatus
Sorted by IPQ® Score, an objective measure of patent quality. View scores and methodology at PatentRatings.com. You can also view all by publication date instead.
US7229572 (B2), filed
Mon Dec 08 00:00:00 CST 2003
, published
Tue Jun 12 00:00:00 CDT 2007
- CABOT CORP
Photoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic...
US7001496 (B2), filed
Wed Dec 18 00:00:00 CST 2002
, published
Tue Feb 21 00:00:00 CST 2006
- CALIPER LIFE SCIENCES INC
A channel ( 140 ) is divised into portions ( 142, 144 ). The sidewalls of each channel portion ( 142, 144 ) have surface charges of opposite polarity. The two channel portions ( 142, 144 ) are physically connected together by a salt bridge ( 133 ), such as a...
US6197563 (B1), filed
Fri Nov 18 00:00:00 CST 1994
, published
Tue Mar 06 00:00:00 CST 2001
- ROCHE MOLECULAR SYSTEMS INC
The present invention is directed to a process for amplifying any target nucleic acid sequence contained in a nucleic acid or mixture thereof using a thermostable enzyme. The process comprises treating separate complementary strands of the nucleic acid with a...
US4419271 (A), filed
Mon Oct 15 00:00:00 CDT 1979
, published
Tue Dec 06 00:00:00 CST 1983
- UNION OIL CO
A hydrocarbon conversion catalyst useful for hydrocracking hydrocarbons to more valuable products comprises one or more hydrogenation components supported on a base containing (1) a crystalline aluminosilicate zeolite having activity for cracking hydrocarbons...
US5851507 (A), filed
Tue Sep 03 00:00:00 CDT 1996
, published
Tue Dec 22 00:00:00 CST 1998
- NANOMATERIALS RESEARCH CORP
A continuous process that produces nanoscale powders from different types of precursor material by evaporating the material and quenching the vaporized phase in a converging-diverging expansion nozzle. The precursor material suspended in a carrier gas is...
US5149105 (A), filed
Mon Feb 11 00:00:00 CST 1991
, published
Tue Sep 22 00:00:00 CDT 1992
- ETHYL CORP
This invention relates to a method and an apparatus for sealing a port of a vessel, which apparatus comprises: (a) a seal for forming a gas-tight seal with the port to close off the port, (b) a chamber; and (c) a chamber sweeping gas for sweeping the chamber.
US4353812 (A), filed
Sun Jun 15 00:00:00 CDT 1980
, published
Tue Oct 12 00:00:00 CDT 1982
- UOP INC
A catalyst regeneration process and apparatus for the oxidative removal of coke from a coke contaminated fluid catalyst. The process comprises a high temperature coke combustion zone, a catalyst disengagement zone and an external heat removal zone comprising a...
US5766556 (A), filed
Tue Dec 31 00:00:00 CST 1996
, published
Tue Jun 16 00:00:00 CDT 1998
- WARNER LAMBERT CO
An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters...
US4700009 (A), filed
Tue Jan 28 00:00:00 CST 1986
, published
Tue Oct 13 00:00:00 CDT 1987
- HOFFMANN LA ROCHE
The present disclosure is concerned with a novel process for the manufacture of substituted benzaldehydes, namely of benzaldehydes of the formula IMAGE I wherein R represents a methoxy or tert.butyl group. The compounds of formula I are known substances,...
US4687121 (A), filed
Thu Jan 09 00:00:00 CST 1986
, published
Tue Aug 18 00:00:00 CDT 1987
- ECOLAB INC
A spray-type dispenser for on-demand dispensing of a solid block of chemical retained within a container in the form of an aqueous chemical solution of substantially constant concentration, comprising: (i) an upwardly dispoded spray nozzle, (ii) a three-dimens...
US4892851 (A), filed
Fri Jul 15 00:00:00 CDT 1988
, published
Tue Jan 09 00:00:00 CST 1990
- FINA TECHNOLOGY
US6967183 (B2), filed
Thu Mar 22 00:00:00 CST 2001
, published
Tue Nov 22 00:00:00 CST 2005
- CABOT CORP
Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of...
US6835311 (B2), filed
Fri Nov 01 00:00:00 CST 2002
, published
Tue Dec 28 00:00:00 CST 2004
- KOSLOW TECHN CORP
The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is adapted to remove natural organic matter in an influent prior to...
US5567391 (A), filed
Mon Jun 05 00:00:00 CDT 1995
, published
Tue Oct 22 00:00:00 CDT 1996
- WARNER LAMBERT CO
An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters...
US6936565 (B2), filed
Mon Oct 29 00:00:00 CST 2001
, published
Tue Aug 30 00:00:00 CDT 2005
- HYPERION CATALYSIS INT
Compositions including modified carbide-containing nanorods and/or modified oxycarbide-containing nanorods and/or modified carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including modified...
US5605662 (A), filed
Mon Nov 01 00:00:00 CST 1993
, published
Tue Feb 25 00:00:00 CST 1997
- NANOGEN INC
A self-addressable, self-assembling microelectronic device is designed and fabricated to actively carry out and control multi-step and multiplex molecular biological reactions in microscopic formats. These reactions include nucleic acid hybridization,...
US6338809 (B1), filed
Tue Feb 24 00:00:00 CST 1998
, published
Tue Jan 15 00:00:00 CST 2002
- SUPERIOR MICROPOWDERS LLC
Provided is an aerosol method, and accompanying apparatus, for preparing powdered products of a variety of materials involving the use of an ultrasonic aerosol generator (106) including a plurality of ultrasonic transducers (120) underlying and ultrasonically...
US7053185 (B1), filed
Tue Aug 15 00:00:00 CDT 2000
, published
Tue May 30 00:00:00 CDT 2006
- HAMLET PHARMA AB
A method for producing an oligomeric form of alpha-lactalbumin which is in the molten globule-like state is described. The method suitably comprises exposing a source of alpha-lactalbumin in which the alpha-lactalbumin is preferably in the molten globule-like...
US4348295 (A), filed
Thu Dec 18 00:00:00 CST 1980
, published
Tue Sep 07 00:00:00 CDT 1982
- DOW CHEMICAL CO
Crystalline hydrous aluminas, Al(OH)3, are reacted with LiX, where X is anion, under appropriate conditions to prepare crystalline compounds conforming substantially to the empirical formula LiX.2Al(OH)3.nH2O where X is anion and nH2O represents waters of...
US6759018 (B1), filed
Tue Dec 15 00:00:00 CST 1998
, published
Tue Jul 06 00:00:00 CDT 2004
- ADVANCED TECH MATERIALS
A system for abating undesired component(s) from a gas stream containing same, such as halocompounds, acid gases, silanes, ammonia, etc., by scrubbing of the effluent gas stream with an aqueous scrubbing medium. Halocompounds, such as fluorine, fluorides,...
US5262024 (A), filed
Mon Apr 08 00:00:00 CDT 1991
, published
Tue Nov 16 00:00:00 CST 1993
- IONEX
Applying a desorbing wave energy to a soil matrix can effect desorption of ionic species which are associated with the matrix. This method is especially applicable to decontamination of soils to which metals and/or radioactive isotopes are adsorbed. The...
US6864201 (B2), filed
Wed Jun 13 00:00:00 CDT 2001
, published
Tue Mar 08 00:00:00 CST 2005
- SYMYX TECHNOLOGIES INC
Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to...
US4309279 (A), filed
Wed Dec 05 00:00:00 CST 1979
, published
Tue Jan 05 00:00:00 CST 1982
- MOBIL OIL CORP
Octane and total yield improvement in catalytic cracking processes can be attained by the addition to conventional cracking catalysts of very small amounts of additive catalyst comprising a class of zeolites characterized by a silica to alumina mole ratio...
US7067070 (B2), filed
Fri Sep 26 00:00:00 CDT 2003
, published
Tue Jun 27 00:00:00 CDT 2006
- CABOT CORP
Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic...
US7150994 (B2), filed
Wed Mar 07 00:00:00 CST 2001
, published
Tue Dec 19 00:00:00 CST 2006
- SYMYX TECHNOLOGIES INC
Parallel flow reaction systems comprising four or more reaction channels are disclosed. Distribution systems, and parallel flow reaction systems comprising such distribution systems are also disclosed. Specifically, the distribution systems comprise one or...
US4256855 (A), filed
Thu Nov 16 00:00:00 CST 1978
, published
Tue Mar 17 00:00:00 CST 1981
- DOW CHEMICAL CO
Compounds represented by the formula IMAGE and addition polymers thereof where m is an integer from 2 to about 10, x-is chlorine, hydroxy, carboxy or -AC-R)=CH2 -R is hydrogen or methyl, -R' is an ethylene or propylene group and -AC-R)=CH2 is one of IMAGE ...
US6989135 (B2), filed
Fri Jun 08 00:00:00 CDT 2001
, published
Tue Jan 24 00:00:00 CST 2006
- SYNTROLEUM CORP
A Fischer-Tropsch-based hydrocarbon conversion process involves compressing air in a compressor section of a gas turbine, delivering a portion of the compressed air to a combustor of the gas turbine, delivering a portion of the compressed air to a Fischer-Trop...
US5922908 (A), filed
Thu Mar 27 00:00:00 CST 1997
, published
Tue Jul 13 00:00:00 CDT 1999
- TWENTY FIRST CENTURY RES CORP
This invention relates to methods of preparing dibasic acids, such as adipic acid for example, by oxidizing a hydrocarbon with a gas containing an oxidant, preferably oxygen. A respective hydrocarbon is reacted with a gaseous oxidant to form dibasic acid in a...
US4335022 (A), filed
Mon Dec 22 00:00:00 CST 1980
, published
Tue Jun 15 00:00:00 CDT 1982
- SHELL OIL CO
A novel siliceous composition prepared by impregnating porous silica with aluminum hydride and subsequently heating the impregnated silica to a temperature of from about 300 DEG C. to about 900 DEG C. in a non-oxidizing environment. The composition is useful...
US4429053 (A), filed
Fri Dec 04 00:00:00 CST 1981
, published
Tue Jan 31 00:00:00 CST 1984
- UNION OIL CO
Y Zeolites are prepared with rare earth cations and Group VIII metal cations exchanged thereinto, such zeolites being especially useful in hydrocracking catalysts. The zeolites of the invention are prepared by exchanging a sodium Y zeolite with cations of one...
US7255954 (B2), filed
Thu Oct 24 00:00:00 CDT 2002
, published
Tue Aug 14 00:00:00 CDT 2007
- CABOT CORP
Electrocatalyst powders and energy devices fabricated using electrocatalyst powders and methods for making energy devices. The energy devices, such as fuel cells, have improved performance over a range of operating conditions.
US5545674 (A), filed
Tue Jan 24 00:00:00 CST 1995
, published
Tue Aug 13 00:00:00 CDT 1996
- EXXON RESEARCH ENGINEERING CO
A supported particulate cobalt catalyst is formed by dispersing cobalt, alone or with a metal promoter, particularly rhenium, as a thin catalytically active film upon a particulate support, especially a silica or titania support. This catalyst can be used to...
US4520128 (A), filed
Mon Dec 19 00:00:00 CST 1983
, published
Tue May 28 00:00:00 CDT 1985
- INTEVEP SA
A new active stable catalyst for use in the removal of sulphur, nitrogen, contaminating metals, asphaltenes and Conradson carbon from heavy crudes and residues and, in particular, a method for the preparation of the catalyst and a process for the treatment of...
US5081160 (A), filed
Tue Apr 02 00:00:00 CST 1991
, published
Tue Jan 14 00:00:00 CST 1992
- DOW CHEMICAL CO
US6777583 (B2), filed
Mon Aug 26 00:00:00 CDT 2002
, published
Tue Aug 17 00:00:00 CDT 2004
- EXXONMOBIL OIL CORP
There is provided a substantially binder-free catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation...
US7172864 (B1), filed
Mon Jan 24 00:00:00 CST 2000
, published
Tue Feb 06 00:00:00 CST 2007
- NANOGEN
A self-addressable, self-assembling microelectronic device is designed and fabricated to actively carry out and control multi-step and multiplex molecular biological reactions in microscopic formats. These reactions include nucleic acid hybridizations,...
US6666541 (B2), filed
Tue Sep 25 00:00:00 CDT 2001
, published
Tue Dec 23 00:00:00 CST 2003
- PICOLITER INC
The present invention provides a method and device for the acoustic ejection of fluid droplets from each of a plurality of fluid-containing reservoirs. The droplets are ejected toward sites on a substrate surface for deposition thereon. The device is comprised...
US7122498 (B2), filed
Fri Jun 29 00:00:00 CDT 2001
, published
Tue Oct 17 00:00:00 CDT 2006
- EXXONMOBIL CHEM PATENTS INC
Metallocenes and catalyst systems for olefin polymerization derived therefrom. The metallocenes may be represented by the formula: wherein MSUP1 /SUPpreferably is zirconium or hafnium; and RSUP12 /SUPis different from hydrogen.
US4503023 (A), filed
Wed Oct 28 00:00:00 CST 1981
, published
Tue Mar 05 00:00:00 CST 1985
- UNION CARBIDE CORP
Aluminum from AlO4-tetrahedra of as-synthesized zeolites is extracted and substituted with silicon to form zeolite compositions having higher SiO2/Al2O3 molar ratios and exhibiting distinctive chemical and physical properties. The preparative procedure...
US4517073 (A), filed
Mon Aug 09 00:00:00 CDT 1982
, published
Tue May 14 00:00:00 CDT 1985
- UNION OIL CO
A hydrocracking process, of especial use in the production of a relatively high yield of middle distillate products along with a smaller but still significant yield of gasoline from high boiling gas oils and the like, comprises contacting a gas oil or other...
US4314983 (A), filed
Wed Apr 04 00:00:00 CST 1979
, published
Tue Feb 09 00:00:00 CST 1982
- UNION OIL CO
Catalysts comprising bismuth and vanadium components are highly active and stable, especially in the presence of water vapor, for oxidizing hydrogen sulfide.
US5741462 (A), filed
Tue Apr 25 00:00:00 CDT 1995
, published
Tue Apr 21 00:00:00 CDT 1998
- IRORI
Combinations, called matrices with memories, of matrix materials with remotely addressable or remotely programmable recording devices that contain at least one data storage unit are provided. The matrix materials are those that are used in as supports in solid...
US4810686 (A), filed
Thu Sep 24 00:00:00 CDT 1987
, published
Tue Mar 07 00:00:00 CST 1989
- SHELL OIL CO
US4233187 (A), filed
Mon Mar 26 00:00:00 CST 1979
, published
Tue Nov 11 00:00:00 CST 1980
- UNITED CATALYSTS INC
An improved catalyst and an improved process for use of the catalyst in the steam-hydrocarbon reforming reaction is disclosed. The catalyst comprises a group VIII metal on a cylindrical ceramic support consisting essentially of alpha alumina and having a...
US5061672 (A), filed
Tue Jan 30 00:00:00 CST 1990
, published
Tue Oct 29 00:00:00 CST 1991
- ELKEM METALS
US6248683 (B1), filed
Wed Apr 07 00:00:00 CDT 1999
, published
Tue Jun 19 00:00:00 CDT 2001
- SILICYCLE INC
The present invention is concerned a process for the regeneration of the spent silica gel used in chromatography and for any other kind of silica. The process comprises 5 main steps, namely:washing with an extractant of organic compounds and removing volatile...
US5565173 (A), filed
Mon Jun 05 00:00:00 CDT 1995
, published
Tue Oct 15 00:00:00 CDT 1996
- WARNER LAMBERT CO
An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction cubes, usually gas dispersion tubes, having filters...
US6245706 (B1), filed
Fri Oct 11 00:00:00 CDT 1996
, published
Tue Jun 12 00:00:00 CDT 2001
- EXXON CHEMICAL PATENTS INC
An ionic polymerization catalyst system component comprising a stable and bulky anion containing a plurality of boron atoms, such as those selected from the group consisting of polynuclear boranes, carboranes, and metallacarboranes useful for polymerizing...
US6113747 (A), filed
Wed Jun 30 00:00:00 CDT 1999
, published
Tue Sep 05 00:00:00 CDT 2000
- GRT INC
In a method of and apparatus for manufacturing methanol from methane a catalytic area is formed on the exterior of a hollow sintered stainless steel tube. Methane is maintained within the sintered stainless steel tube at predetermined pressure, and water...
US5985356 (A), filed
Tue Oct 18 00:00:00 CDT 1994
, published
Tue Nov 16 00:00:00 CST 1999
- SYMYX TECHNOLOGIES INC
Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to...
US6830823 (B1), filed
Fri Oct 27 00:00:00 CDT 2000
, published
Tue Dec 14 00:00:00 CST 2004
- SUPERIOR MICROPOWDERS LLC
Gold powders and methods for producing gold powders. The powders preferably have a small particle size, narrow size distribution and a spherical morphology. The method includes forming the particles by a spray pyrolysis technique. The invention also includes...
US5677195 (A), filed
Fri Nov 20 00:00:00 CST 1992
, published
Tue Oct 14 00:00:00 CDT 1997
- AFFYMAX TECH NV
A method and device for forming large arrays of polymers on a substrate (401). According to a preferred aspect of the invention, the substrate is contacted by a channel block (407) having channels (409) therein. Selected reagents are delivered through the...
US6787501 (B2), filed
Mon Jun 24 00:00:00 CDT 2002
, published
Tue Sep 07 00:00:00 CDT 2004
- EXXONMOBIL CHEM PATENTS INC
The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a...
US4175114 (A), filed
Thu Oct 13 00:00:00 CDT 1977
, published
Tue Nov 20 00:00:00 CST 1979
- MOBIL CORP
As synthesized by previous methods, ZSM-5 or ZSM-11 zeolites are crystallized in the presence of substantial amounts of a nitrogen-containing compound. When synthesized in this way, they contain an organic ammonium cation as well as a metal cation such as...
US7449424 (B2), filed
Tue Mar 08 00:00:00 CST 2005
, published
Tue Nov 11 00:00:00 CST 2008
- GAS TECHNOLOGY INST
A method for producing a catalytically-active material having at least one base component and at least one catalytically-active component in which the at least one base component is heated to a softening or melting temperature to form a softened or molten base...
US5714127 (A), filed
Wed Jun 07 00:00:00 CDT 1995
, published
Tue Feb 03 00:00:00 CST 1998
- WARNER LAMBERT CO
A system for the multiple, simultaneous synthesis of compounds preferably uses a reaction apparatus comprising a reservoir rack having a plurality of reaction wells, a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower...
Partitioned microelectronic and fluidic device array for clinical diagnostics and chemical synthesis
US5585069 (A), filed
Thu Nov 10 00:00:00 CST 1994
, published
Tue Dec 17 00:00:00 CST 1996
- SARNOFF DAVID RES CENTER
A system for processing a plurality of tests or syntheses in parallel comprising a sample channel for moving samples into a microlaboratory array of a plurality of wells connected by one or more channels for the testing or synthesis of samples, a station for...
US6214176 (B1), filed
Fri Jan 07 00:00:00 CST 2000
, published
Tue Apr 10 00:00:00 CDT 2001
- GRT INC
In a method of and apparatus for manufacturing methanol and higher alcohols from natural gas a catalytic area is formed on the exterior of a gas permeable partition. Natural gas is maintained on the interior of the gas permeable partition at predetermined...
US4559314 (A), filed
Mon Jan 23 00:00:00 CST 1984
, published
Tue Dec 17 00:00:00 CST 1985
- MOBIL OIL CORP
The activity of a zeolite catalyst is enhanced by forming the catalyst into a composite with a binder such as alumina and steaming the composite. The zeolites have a Constraint Index of 1 to 12 and a silica:alumina ratio of at least 12 and ZSM-5 is preferred....
US6576582 (B1), filed
Wed Nov 15 00:00:00 CST 1995
, published
Tue Jun 10 00:00:00 CDT 2003
- EXXONMOBIL OIL CORP
There is provided a substantially binder-free catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation...
US4477367 (A), filed
Mon Aug 30 00:00:00 CDT 1982
, published
Tue Oct 16 00:00:00 CDT 1984
- DOW CHEMICAL CO
Crystalline 2-layer LiOH.2Al(OH)3.nH2O, preferably supported by a porous substrate, is prepared by treating crystalline 2-layer LiX.2Al(OH)3.nH2O, where X is anion, with a LiOH solution or other hydroxide ion source. The so-formed crystalline 2-layer...
US7077882 (B2), filed
Fri Jul 16 00:00:00 CDT 2004
, published
Tue Jul 18 00:00:00 CDT 2006
- CABOT CORP
Gold powders and methods for producing gold powders. The powders preferably have a small particle size, narrow size distribution and a spherical morphology. The method includes forming the particles by a spray pyrolysis technique. The invention also includes...
US5478548 (A), filed
Fri Feb 04 00:00:00 CST 1994
, published
Tue Dec 26 00:00:00 CST 1995
Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol phase...
US5258133 (A), filed
Mon Dec 07 00:00:00 CST 1992
, published
Tue Nov 02 00:00:00 CST 1993
- LEVER BROTHERS CO
US5076912 (A), filed
Tue May 29 00:00:00 CDT 1990
, published
Tue Dec 31 00:00:00 CST 1991
- BRITA WASSERFILTER
In an apparatus for water treatment and comprising a pod containing a weakly acid or weakly basic ion exchanger and of which the inlet aperture is formed in the region of one end while the outlet orifice is formed in the region of the other end, in each case...
US6136269 (A), filed
Fri Apr 21 00:00:00 CDT 1995
, published
Tue Oct 24 00:00:00 CDT 2000
- AFFYMETRIX INC
A device for forming large arrays of polymers on a substrate (401). According to a preferred aspect of the invention, the substrate is contacted by a channel block (407) having channels (409) therein. Selected reagents are delivered through the channels, the...
US7230128 (B2), filed
Fri May 10 00:00:00 CDT 2002
, published
Tue Jun 12 00:00:00 CDT 2007
- PHILLIPS POTROLEUM COMPANY
Fluorenyl-containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed.
US7288669 (B2), filed
Fri Aug 26 00:00:00 CDT 2005
, published
Tue Oct 30 00:00:00 CDT 2007
- ROHM HAAS
An improved catalyst comprising a mixed metal oxide, either promoted or not, is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a...
US4352883 (A), filed
Wed Mar 28 00:00:00 CST 1979
, published
Tue Oct 05 00:00:00 CDT 1982
- DAMON CORP
A core material such as living tissue, individual cells, hormones, enzymes or antibodies is encapsulated in a semipermeable membrane that is permeable to small molecules for contact with the core material but is impermeable to potentially deleterious large...
US4429176 (A), filed
Mon Feb 08 00:00:00 CST 1982
, published
Tue Jan 31 00:00:00 CST 1984
- MOBIL OIL CORP
A zeolite of improved stability for use in acid-catalyzed reactions is prepared by mildly presteaming the catalyst under controlled conditions of temperature, time, and steam partial pressure. The resulting catalyst retains nearly the same activity as that of...
US5250277 (A), filed
Fri Dec 20 00:00:00 CST 1991
, published
Tue Oct 05 00:00:00 CDT 1993
- MOBIL OIL CORP
There is provided a crystalline oxide material with a characteristic X-ray diffraction pattern. This material may be a layered material, which is swollen or pillared. Upon calcination of the swollen material, the layers collapse and condense upon one another...
US6964735 (B2), filed
Mon Dec 10 00:00:00 CST 2001
, published
Tue Nov 15 00:00:00 CST 2005
- ACLARA BIOSCIENCES INC
Devices and methods are disclosed for moving charged molecules through a medium by the application of a plurality of electrical fields of sufficient strength and applied for sufficient amounts of time so as to move the charged molecules through the medium. The...
US6679937 (B1), filed
Fri Jun 02 00:00:00 CDT 2000
, published
Tue Jan 20 00:00:00 CST 2004
- CABOT CORP
Copper metal powders, methods for producing copper metal powders and products incorporating the powders. The copper metal powders have a small particle size, narrow size distribution and a spherical morphology. The method includes forming the metal particles...
US4544539 (A), filed
Wed May 11 00:00:00 CDT 1983
, published
Tue Oct 01 00:00:00 CDT 1985
- EXXON RESEARCH ENGINEERING CO
A zeolite related to zeolite L and having a characteristic cylindrical morphology may be prepared from a crystallization gel comprising (in mole ratios of oxides): K2O/SiO2: 0.22-0.36 H2O/K2O: 25-90 SiO2/Al2O3: 6-15 and preferably with the mole ratio...
US5057481 (A), filed
Mon Oct 03 00:00:00 CDT 1988
, published
Tue Oct 15 00:00:00 CDT 1991
- UNION CARBIDE CHEM PLASTIC
This invention relates to the catalysts for the manufacture of ethylene oxide at commercial concentrations in the presence of carbon dioxide gas recycle which contains impregnated silver on a support and a mixture of cesium salts, at least one of which is a...
US4476246 (A), filed
Wed Jan 26 00:00:00 CST 1983
, published
Tue Oct 09 00:00:00 CDT 1984
- GRACE W R CO
Catalysts are made from supports which are doubly promoted with ceria and an alkali metal oxide by adding these promoters and the catalytic noble metal components in a specified order. The ceria is first applied to the support. It can be applied in a salt form...
US4502947 (A), filed
Mon May 21 00:00:00 CDT 1984
, published
Tue Mar 05 00:00:00 CST 1985
- MOBIL OIL CORP
Disclosed is a method and apparatus for fluid catalytic cracking (FCC). The output of a reactor riser zone is fed to a riser cyclone separator, a primary cyclone separator, and secondary cyclone separators, connected in series within a single reactor vessel....
US4676887 (A), filed
Mon Feb 03 00:00:00 CST 1986
, published
Tue Jun 30 00:00:00 CDT 1987
- MOBIL OIL CORP
A moderate pressure hydrocracking process is disclosed in which substantially dealkylated heavy distillate feedstocks are processed directly to high octane gasoline over a catalyst, preferably comprising a crystalline silicate zeolite hydrocracking component...
US4707440 (A), filed
Mon Jan 30 00:00:00 CST 1984
, published
Tue Nov 17 00:00:00 CST 1987
- ENZO BIOCHEM INC
A detectable molecule of the formula A3-(-X-R1-E-Detb)m where A3 is A2 or a polymer, where A3 has at least one modifiable reactive group selected from the group consisting of amino, hydroxy, cis OH, halides, aryl, imidazoyl, carbonyl, carboxy, thiol or a...
US5476823 (A), filed
Fri May 28 00:00:00 CDT 1993
, published
Tue Dec 19 00:00:00 CST 1995
- MOBIL OIL CORP
An ex situ selectivated catalytic molecular sieve for enhanced shape selective hydrocarbon conversions in which a catalytic molecular sieve is modified by being exposed to at least two selectivation sequences, each sequence including an impregnation of the...
US7041509 (B2), filed
Tue Apr 02 00:00:00 CST 2002
, published
Tue May 09 00:00:00 CDT 2006
- CALIPER LIFE SCIENCES INC
The present invention provides novel microfluidic devices and methods that are useful for performing high-throughput screening assays. In particular, the devices and methods of the invention are useful in screening large numbers of different compounds for...
US5013427 (A), filed
Tue Jul 18 00:00:00 CDT 1989
, published
Tue May 07 00:00:00 CDT 1991
- AMOCO CORPORTION
A hydrotreating process if provided in which resid and resins are hydrotreated with hydrogen-rich gases in the presence of a hydrotreating catalyst in an ebullated bed reactor.
US7004994 (B2), filed
Mon Feb 09 00:00:00 CST 2004
, published
Tue Feb 28 00:00:00 CST 2006
- CABOT CORP
Provided are silver-containing powders and a method and apparatus for manufacturing the silver-containing particles of high quality, of a small size and narrow size distribution. An aerosol is generated from liquid feed and sent to a furnace, where liquid in...
US6660680 (B1), filed
Wed Mar 22 00:00:00 CST 2000
, published
Tue Dec 09 00:00:00 CST 2003
- SUPERIOR MICROPOWDERS LLC
Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of...
US4588709 (A), filed
Fri Apr 19 00:00:00 CST 1985
, published
Tue May 13 00:00:00 CDT 1986
- INTEVEP SA
A catalyst for the hydrotreatment of heavy crudes and their residues, and a method of preparing same, is disclosed, which has significant simultaneous hydrodemetallizing and hydrodesulfurizing activity. The catalyst is prepared by successively impregnating an...
US5749937 (A), filed
Tue Mar 14 00:00:00 CST 1995
, published
Tue May 12 00:00:00 CDT 1998
- LOCKHEED IDAHO TECHNOLOGIES CO
A fast quench reaction includes a reactor chamber having a high temperature heating means such as a plasma torch at its inlet and a restrictive convergent-divergent nozzle at its outlet end. Reactants are injected into the reactor chamber. The resulting heated...
US4415475 (A), filed
Fri Jun 18 00:00:00 CDT 1982
, published
Tue Nov 15 00:00:00 CST 1983
- NAT DISTILLERS CHEM CORP
A process for preparing 2-butenolide, a useful product for the manufacture of gamma-butyrolactone, is disclosed which comprises reacting furan with oxygen in the presence of a catalytically effective amount of a catalyst comprising a mixed metal oxide...
US7081267 (B2), filed
Tue Jul 08 00:00:00 CDT 2003
, published
Tue Jul 25 00:00:00 CDT 2006
- NANOPRODUCTS CORP
Methods to manufacture nanoscale particles comprising metals, alloys, intermetallics, ceramics are disclosed. The thermal energy is provided by plasma, internal energy, heat of reaction, microwave, electromagnetic, direct electric arc, pulsed electric arc...
US5593642 (A), filed
Mon Jun 05 00:00:00 CDT 1995
, published
Tue Jan 14 00:00:00 CST 1997
- WARNER LAMBERT CO
An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters...
US7091048 (B2), filed
Thu Oct 24 00:00:00 CDT 2002
, published
Tue Aug 15 00:00:00 CDT 2006
- PARCE J WALLACE
The present invention provides novel microfluidic devices and methods that are useful for performing high-throughput screening assays. In particular, the devices and methods of the invention are useful in screening large numbers of different compounds for...
US4911928 (A), filed
Thu Mar 03 00:00:00 CST 1988
, published
Tue Mar 27 00:00:00 CST 1990
- MICRO PAK INC
A new method of producing paucilamellar lipid vesicles has been developed. The vesicles are made of non-phospholipid surfactants. The paucilamellar lipid vesicles have 2-8 lipid bilayers surrounding a central cavity which may be filled with either an...
US5102643 (A), filed
Thu Jan 25 00:00:00 CST 1990
, published
Tue Apr 07 00:00:00 CDT 1992
- MOBIL OIL CORP
This invention relates to a new synthetic composition of ultra-large pore crystalline material, a method for its preparation and use thereof as sorbent and in catalytic conversion of organic compounds. The new crystalline material exhibits unusually large...
US6958310 (B2), filed
Mon Mar 24 00:00:00 CST 2003
, published
Tue Oct 25 00:00:00 CDT 2005
- BATTELLE MEMORIAL INSTITUTE
A method of steam reforming a hydrocarbon over a spinel-containing catalyst at short residence times or short contact times. The present invention also provides spinel-containing catalysts. Surprisingly superior results and properties obtained in methods and...
US6479699 (B2), filed
Tue Jul 03 00:00:00 CDT 2001
, published
Tue Nov 12 00:00:00 CST 2002
- MOSSI GHISOLFI OVERSEAS S A
Disclosed is a method for selective carboxylation of naphthoic acid, or other aromatic mono-acids to form primarily 2,3-naphthalene dicarboxylic acid (2,3-NDA) or other aromatic diacids which comprises reacting said aromatic mono-acid in the presence of one or...
US4419220 (A), filed
Tue May 18 00:00:00 CDT 1982
, published
Tue Dec 06 00:00:00 CST 1983
- MOBIL OIL CORP
Hydrocarbon feedstocks such as distillate fuel oils and gas oils are dewaxed by isomerizing the waxy components over a zeolite beta catalyst. The process may be carried out in the presence or absence of added hydrogen. Preferred catalysts have a zeolite...
US4378381 (A), filed
Fri Oct 31 00:00:00 CST 1980
, published
Tue Mar 29 00:00:00 CST 1983
- ITT
An edible suspension of a finely divided food material in a liquid suspending medium which swells cellulose, the suspension also containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The microfibrillated...
US6087186 (A), filed
Thu Feb 02 00:00:00 CST 1995
, published
Tue Jul 11 00:00:00 CDT 2000
- IRORI
The present invention provides labeled synthetic libraries of random oligomers and methods and apparatus for generating labeled synthetic oligomer libraries. Each member of such a library is labeled with a unique identifier tag that specifies the structure or...
US6814935 (B2), filed
Thu Jun 28 00:00:00 CDT 2001
, published
Tue Nov 09 00:00:00 CST 2004
- 3M INNOVATIVE PROPERTIES CO
Methods and devices for thermal processing of multiple samples at the same time are disclosed. The assemblies include carriers and sample processing devices with process arrays that include conduits useful in distributing sample materials to a group pf process...
US6040193 (A), filed
Tue Aug 04 00:00:00 CDT 1998
, published
Tue Mar 21 00:00:00 CST 2000
- AFFYMETRIX INC
An array is created by moving a dispenser toward a solid support until a tip of the dispenser touches the support, withdrawing the tip from the surface and releasing a drop of 5 nanoliters or less in an area smaller than 1 mm2 to create an array of at least...
US6111037 (A), filed
Fri Oct 31 00:00:00 CST 1997
, published
Tue Aug 29 00:00:00 CDT 2000
- CHEVRON CHEM CO
An amorphous aluminophosphate composition is provided which exhibits a microstructure of sheets and spheres of silica-modified aluminophosphate. Also provided is a method for preparing the composition comprising mixing an aqueous solution containing aluminum...
