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

John McMahon — 3 Patents

BABarker: 2 patents #2 of 6Top 35%
Fairfield, IA: #25 of 108 inventorsTop 25%
Iowa: #4,706 of 15,303 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John McMahon has been granted 3 US patents while listed as an inventor at Barker. The first was granted in 1985 and the most recent in April 2000. John McMahon ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John McMahon in Fairfield, IA, US.

Patents per Year

Patents granted per year, 1985 to 2000Bar chart with a peak of 1 patents in 1985.peak 11985: 1 patents19851987: 1 patents19872000: 1 patents2000

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6050010 Internally illuminatable card and lighter Raymond Garcia, David Gerry, John Nakama 2000-04-18
D289834 Refrigerated display stand J. Patrick McMahon 1987-05-19
D280476 Refrigerated display case J. Patrick McMahon 1985-09-10