Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Jack H. Pollock — 2 Patents

PTPrecision Welding Technologies: 1 patents #5 of 6Top 85%
Gardena, CA: #113 of 346 inventorsTop 35%
California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,348,877 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4598895 Plug valve with hydraulically actuated seals Carl O. DeWald 1986-07-08
4497467 Plug valve with hydraulically actuated seals Carl O. DeWald 1985-02-05