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USPTO Patent Rankings Data through Dec 31, 2025
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Douglas Touissaint — 1 Patent

FIFiltertek: 1 patents #20 of 36Top 60%
McHenry, IL: #212 of 350 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
Douglas Touissaint has been granted 1 US patent while listed as an inventor at Filtertek. All of these patents were granted in 1984. Douglas Touissaint ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Douglas Touissaint in McHenry, IL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D276494 Plastic landscape edging unit Polly Novak 1984-11-27