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

Robert P. St. John

Xerox: 4 patents #2,608 of 8,622Top 35%
Sunnyvale, CA: #5,543 of 14,302 inventorsTop 40%
California: #124,610 of 386,348 inventorsTop 35%
Overall (All Time): #1,294,736 of 4,157,543Top 35%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5329599 Enhanced fidelity reproduction of images by hierarchical template matching Douglas N. Curry, Sofia Filshtinsky 1994-07-12
RE32967 Web tracking system William A. Lloyd 1989-06-27
4569584 Color electrographic recording apparatus William A. Lloyd 1986-02-11
4485982 Web tracking system William A. Lloyd 1984-12-04