Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Benjamin C. Spehlmann — 2 Patents

UOUop: 2 patents #869 of 1,854Top 50%
Glenview, IL: #376 of 857 inventorsTop 45%
Illinois: #34,875 of 84,256 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Benjamin C. Spehlmann has been granted 2 US patents while listed as an inventor at Uop. The first was granted in 1992 and the most recent in October 1999. Benjamin C. Spehlmann ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Benjamin C. Spehlmann in Glenview, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5962735 Method for treating an organic liquid contaminated with an iodide compound Santi Kulprathipanja, Richard R. Willis, John D. Sherman, William A. Leet 1999-10-05
5146035 Butene isomerization process Gail L. Gray, Lawrence D. Vail, Gregory J. Gajda 1992-09-08