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USPTO Patent Rankings Data through Dec 31, 2025
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Clarence D. Fox — 11 Patents

BOBorgwarner: 7 patents #139 of 1,600Top 9%
BABorg-Warner Automotive: 3 patents #42 of 259Top 20%
Decatur, IL: #25 of 423 inventorsTop 6%
Illinois: #8,093 of 84,256 inventorsTop 10%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
Clarence D. Fox has been granted 11 US patents while listed as an inventor at Borgwarner. The first was granted in 1981 and the most recent in July 1992. Clarence D. Fox ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Clarence D. Fox in Decatur, IL, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5133424 Variable assist power steering control valve Rosamond L. Fox, executrix, Richard W. Dymond 1992-07-28
4947887 Proportional solenoid valve 1990-08-14
4878511 Valve assembly for a vehicular fuel tank 1989-11-07
4875499 Proportional solenoid valve 1989-10-24
4757718 De-icer for a transducer assembly 1988-07-19
4715396 Proportional solenoid valve 1987-12-29
4610428 Hermetically sealed electromagnetic solenoid valve 1986-09-09
4585030 Proportional hydraulic solenoid controller 1986-04-29 $8,755,000
4534375 Proportional solenoid valve 1985-08-13 $13,234,000
4522371 Proportional solenoid valve Tibor Baron 1985-06-11 $7,402,000
4285700 Fuel enrichment apparatus and method for gaseous fuel mixers 1981-08-25 $2,814,000