Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Stepan — 2 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Strongsville, OH: #175 of 429 inventorsTop 45%
Ohio: #30,551 of 73,341 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert Stepan has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 1997 and the most recent in March 2023. Robert Stepan ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert Stepan in Strongsville, OH, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11608463 Bio-derived complex for oil and gas well remediation Richard Strother, Jeffrey Loch 2023-03-21
5691286 Environmentally friendly sugar mill bearing lubricant 1997-11-25