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USPTO Patent Rankings Data through Dec 31, 2025
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Darrell M. Kohr — 1 Patent

CECox Engineering: 1 patents #7 of 12Top 60%
Pembroke, MA: #57 of 86 inventorsTop 70%
Massachusetts: #57,159 of 88,656 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Darrell M. Kohr has been granted 1 US patent while listed as an inventor at Cox Engineering. All of these patents were granted in 2002. Darrell M. Kohr ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Darrell M. Kohr in Pembroke, MA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6346041 Economizer John Desmond, Rumen N. Raykov, Benjamin J. Kalinowski, Richard J. Rummo, Brett O'Brien +1 more 2002-02-12