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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JA

John Acker — 1 Patent

EAEngineering Research Associates: 1 patents #17 of 25Top 70%
Tucson, AZ: #3,413 of 6,004 inventorsTop 60%
Arizona: #18,529 of 32,909 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
John Acker has been granted 1 US patent while listed as an inventor at Engineering Research Associates. All of these patents were granted in 1993. John Acker ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John Acker in Tucson, AZ, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D341567 Electric power source for a plastic tubing sealer Leonard T. Williams 1993-11-23