Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Stephen C. Winans — 3 Patents

UCUnion Carbide: 3 patents #288 of 1,402Top 25%
South Charleston, WV: #40 of 96 inventorsTop 45%
West Virginia: #810 of 3,425 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Stephen C. Winans has been granted 3 US patents while listed as an inventor at Union Carbide. The first was granted in 1980 and the most recent in April 1981. Stephen C. Winans ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Stephen C. Winans in South Charleston, WV, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4262142 Hydroformylation of ethylene with higher olefins Paul Dylan Sherman, Dennis G. Morrell 1981-04-14 $3,636,000
4225530 Rhodium catalyst regeneration by carbon monoxide treatment Robert W. Beisner 1980-09-30 $6,884,000
4224235 Rhodium catalyst regeneration by thermal treatment Robert W. Beisner 1980-09-23 $1,635,000