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USPTO Patent Rankings Data through Dec 31, 2025
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Kenneth A. Barrett — 5 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Northampton, MA: #20 of 96 inventorsTop 25%
Massachusetts: #23,696 of 88,656 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Kenneth A. Barrett has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 1984 and the most recent in September 2015. Kenneth A. Barrett ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Kenneth A. Barrett in Northampton, MA, US.

Patents per Year

Patents granted per year, 1984 to 2015Bar chart with a peak of 2 patents in 2013.peak 21984: 1 patents19841999: 1 patents19992013: 2 patents20132015: 1 patents2015

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9139950 Dryer lint collection system Roderic Nathan Uphaus 2015-09-22
D676535 Lighted headpiece with fan for portable work light 2013-02-19
D676191 Lighted headpiece for portable work light 2013-02-12
D405847 Finger flipper flying disk 1999-02-16
4429881 Portable golf game 1984-02-07