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USPTO Patent Rankings Data through Dec 31, 2025
JH

John E. Holfmann — 1 Patent

FTFuel Tech: 1 patents #29 of 60Top 50%
Naperville, IL: #1,865 of 3,051 inventorsTop 65%
Illinois: #49,230 of 84,256 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
John E. Holfmann has been granted 1 US patent while listed as an inventor at Fuel Tech. All of these patents were granted in 1993. John E. Holfmann ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John E. Holfmann in Naperville, IL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5240688 Process for the in-line hydrolysis of urea Thure von Harpe, Reihard Pachaly 1993-08-31