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USPTO Patent Rankings Data through Dec 31, 2025
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Calvin Walker — 4 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
Bridgeton, MO: #17 of 97 inventorsTop 20%
Missouri: #5,303 of 23,789 inventorsTop 25%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Calvin Walker has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1982 and the most recent in June 2016. Calvin Walker ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Calvin Walker in Bridgeton, MO, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9376817 Rafter center translation tool set 2016-06-28
RE44102 Location specific alarm relay (L.S.A.R) 2013-03-26
6344799 Location specific alarm relay (L.S.A.R) 2002-02-05
D265364 Newspaper stand 1982-07-13