Frederick E. Lederman — 77 Patents at General Motors

Frederick E. Lederman has been granted 77 US patents while listed as an inventor at General Motors. The first was granted in 1981 and the most recent in December 1999. Frederick E. Lederman ranks #24,274 of 4,157,543 US inventors in our database (top 0.58%). Patent records list Frederick E. Lederman in Sandusky, OH, US.

Issued Patents All Time

Showing 1–25 of 77 patents

Patent #	Title	Co-Inventors	Date
6006881	Moldable plastic roller clutch cage with improved concentricity control, mechanical retention, and lubricant retention	Lorenzo Hood	1999-12-28
5669476	Roller clutch with secure spring to cage mount	—	1997-09-23
5636720	Moldable roller clutch cage with full support pockets	—	1997-06-10
5588210	Method of manufacturing a unitized seal	—	1996-12-31
5507094	Wheel bearing assembly with dual telescoping outer rings and improved load support	—	1996-04-16
5492340	Floating disk seal assembly	—	1996-02-20
5492337	Rotary spring loaded seal assembly	—	1996-02-20
5492339	Rotary seal assembly	—	1996-02-20
5458352	Combined vehicle suspension and wheel bearing with improved manufacture	—	1995-10-17
5387041	Close packed plastic bearing ball separator	—	1995-02-07
5380103	Self tightening venting end cap for vehicle wheel bearing	—	1995-01-10
5328010	Overrunning roller clutch with improved self protecting spring	—	1994-07-12
5207436	Low friction unitized seal	—	1993-05-04
5201533	Unitized seal with extra sealing contact and method of making	—	1993-04-13
5201386	Wick feed bearing lubrication system	—	1993-04-13
5195807	Venting wheel bearing end cap	—	1993-03-23
5172878	Motion transmitting remote control assembly with improved retainers	—	1992-12-22
5172984	Venting end cap for vehicle wheel bearing	—	1992-12-22
5163691	Stacked seal with improved manufacture	—	1992-11-17
5152726	Shiftable roller clutch	—	1992-10-06
5147139	Multiple lip seal assembly with improved accuracy	—	1992-09-15
5129495	Dual roller clutch assembly with assembly integrity assurance	Albert D. Johnston	1992-07-14
5101946	Cage phased roller clutch with improved roller shifting	—	1992-04-07
5070977	Leg type roller clutch assembly	—	1991-12-10
5062512	Roller clutch cage with push on installation	—	1991-11-05

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Frederick E. Lederman — 77 Patents

Issued Patents All Time

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