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USPTO Patent Rankings Data through Dec 31, 2025
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Wendell Judd — 4 Patents

CDCo-Tech Development: 3 patents #6 of 20Top 30%
Lancaster, OH: #196 of 666 inventorsTop 30%
Ohio: #19,019 of 73,341 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Wendell Judd has been granted 4 US patents while listed as an inventor at Co-Tech Development. The first was granted in 1991 and the most recent in May 2005. Wendell Judd ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Wendell Judd in Lancaster, OH, US.

Patents per Year

Patents granted per year, 1991 to 2005Bar chart with a peak of 2 patents in 1991.peak 21991: 2 patents19911995: 1 patents19952005: 1 patents2005

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6887389 Method and apparatus for recycling sewage sludge utilizing spent water-softener lime 2005-05-03
5392721 Method for recycling papermaking sludge 1995-02-28
5054406 Water retardant covering material for solid waste landfills 1991-10-08 $102,000
5018459 Method and apparatus for recycling paper pulp sludge 1991-05-28 $154,000