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USPTO Patent Rankings Data through Dec 31, 2025
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Thomas E. Duffel — 1 Patent

SPSpecgx: 1 patents #18 of 33Top 55%
Barnhart, MO: #5 of 19 inventorsTop 30%
Missouri: #13,158 of 23,789 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Thomas E. Duffel has been granted 1 US patent while listed as an inventor at Specgx. All of these patents were granted in 2018. Thomas E. Duffel ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Thomas E. Duffel in Barnhart, MO, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10089678 Suspicious order monitoring system and method Jennifer M. Buist, Karen A. Harper, Donald A. Lohman, David M. Scheu, Gail S. Tetzlaff 2018-10-02