Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RF

Robert F. Frazier — 1 Patent

San Francisco, CA: #18,903 of 26,999 inventorsTop 75%
California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,045,338 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4486646 Apparatus for generating ramp voltage for use with arc welder 1984-12-04