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USPTO Patent Rankings Data through Dec 31, 2025
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Robert C. Farrell — 6 Patents

General Motors: 6 patents #2,630 of 18,328Top 15%
Frankenmuth, MI: #24 of 98 inventorsTop 25%
Michigan: #15,817 of 86,293 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Robert C. Farrell has been granted 6 US patents while listed as an inventor at General Motors. The first was granted in 1988 and the most recent in June 1996. Robert C. Farrell ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Robert C. Farrell in Frankenmuth, MI, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5529538 Boot bushing for constant velocity universal joint John F. Schulz, Keith A. Kozlowskik, Richard Allen Devers, Donovan J. Zollinger 1996-06-25
5073144 Drive assembly for universal joint Paul R. Stenglein, Michael A. Derry 1991-12-17
4881842 Wheel bearing assembly George A. Lundy 1989-11-21
4810232 Telescopic tripot universal joint David McGregor 1989-03-07
4798560 Unitized wheel bearing assembly 1989-01-17
4768990 Telescopic tripot universal joint with bearing rollers Raymond J. Schultz 1988-09-06