Top 100 US Patents in Couplings, clutches, brakes, etc.
section f - mechanical engineering; lighting; heating; weapons; blasting > engineering elements or units; general measures for producing and maintaining effective functioning of machines or installations; thermal insulation in general > couplings for transmitting rotation; clutches; brakes
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.
