Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John Leonardo — 3 Patents

TMTexas Microsystems: 1 patents #5 of 11Top 50%
Merced, CA: #66 of 257 inventorsTop 30%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John Leonardo has been granted 3 US patents while listed as an inventor at Texas Microsystems. The first was granted in 1987 and the most recent in April 1994. John Leonardo ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Leonardo in Merced, CA, US.

Patents per Year

Patents granted per year, 1987 to 1994Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19871989: 1 patents19891994: 1 patents1994

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D345964 Computer system unit Charles D. Hultgren, James L. Schlemmer, Dan G. Luce, Lindsay Gupton 1994-04-12
4846106 Method and apparatus for detecting standing heat in cattle 1989-07-11
4635587 Method and apparatus for detecting standing heat in cattle 1987-01-13