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USPTO Patent Rankings Data through Sept 30, 2025
PY

Peng K. Yap

Xerox: 1 patents #5,237 of 8,622Top 65%
San Francisco, CA: #18,903 of 26,999 inventorsTop 75%
California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,867,476 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4984040 High voltage thin film transistor with second gate 1991-01-08