Patent assignee · US · COMPANY

SKF Industries

27Patents
0Active
27Granted
31Portfolio score

Filing activity: Oct 9, 1973 → Nov 24, 1997

Most-cited patents

PatentTitleAreaCited byStatus
US4239632A Lubricant composition Chemistry; Metallurgy 40 Expired
US4557613A Spherical roller bearing having reciprocal crowning for skew control Mechanical Engineering; Lighting; Heating 37 Expired
US4492415A Unitary full complement bearing components containing rolling elements in a self-supporting lubricating matrix Mechanical Engineering; Lighting; Heating 27 Expired
US4222620A Cage for a rolling bearing made of synthetic material Mechanical Engineering; Lighting; Heating 22 Expired
US4534871A Lubricant insert for rolling bearings Mechanical Engineering; Lighting; Heating 21 Expired
US3963285A Cage control of skew angle in roller bearings Mechanical Engineering; Lighting; Heating 20 Expired
US4402558A Rolling bearing Mechanical Engineering; Lighting; Heating 17 Expired
US3971565A Seal assembly for pillow block housing Mechanical Engineering; Lighting; Heating 16 Expired
US3990753A Roller bearings comprising rollers with positive skew angle Mechanical Engineering; Lighting; Heating 15 Expired
US4235487A Rolling bearing cage Mechanical Engineering; Lighting; Heating 15 Expired
US4408809A Seal, especially for wheel bearing arrangements for vehicles Mechanical Engineering; Lighting; Heating 15 Expired
US4227754A Rolling bearing Mechanical Engineering; Lighting; Heating 14 Expired
US4165085A Foamed plastic lubricating seal Electricity 12 Expired
US4146487A Lubricating composition Chemistry; Metallurgy 11 Expired
US4118080A Sealed antifriction bearing with sealing element Mechanical Engineering; Lighting; Heating 9 Expired
US4046433A Wheel bearing unit for motor vehicles Mechanical Engineering; Lighting; Heating 8 Expired
US4235489A External device for selectively converting a pillow block between free and held positions Emerging Cross-Sectional Technologies 7 Expired
US4065191A Roller skew control for tapered roller bearings Emerging Cross-Sectional Technologies 6 Expired
US4280743A Double-row spherical roller bearing Mechanical Engineering; Lighting; Heating 6 Expired
US4291927A Integral foamed plastic sliding bearings Mechanical Engineering; Lighting; Heating 4 Expired
US4379599A Bearing inner ring Emerging Cross-Sectional Technologies 3 Expired
US4240681A Two row rolling bearing assembly having single piece inner ring and two piece outer ring Mechanical Engineering; Lighting; Heating 3 Expired
US4042422A Method for forming bearing unit Mechanical Engineering; Lighting; Heating 3 Expired
US4138169A Two row rolling bearing assembly having single piece inner ring and two piece outer ring Mechanical Engineering; Lighting; Heating 3 Expired
US4209208A Rolling bearing for conveyor rolls Mechanical Engineering; Lighting; Heating 2 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.