Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Dennis Koehler — 4 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
HAHusqvarna Ab: 1 patents #386 of 690Top 60%
Neenah, WI: #337 of 889 inventorsTop 40%
Wisconsin: #10,875 of 40,088 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Dennis Koehler has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1987 and the most recent in March 2023. Dennis Koehler ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Dennis Koehler in Neenah, WI, US.

Patents per Year

Patents granted per year, 1987 to 2023Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19871988: 1 patents19881990: 1 patents19902023: 1 patents2023

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11596117 System for operating a garden equipment control device Martin Lienhard 2023-03-07
4893784 Method and apparatus for jacking basement walls Robert Salem Abraham 1990-01-16
4763878 Apparatus for jacking basement walls Robert Salem Abraham 1988-08-16
4669704 Method and apparatus for jacking basement walls Robert Salem Abraham 1987-06-02