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

John Fretwell

FEFei: 1 patents #375 of 681Top 60%
Kla-Tencor: 1 patents #316 of 626Top 55%
Fort Worth, TX: #829 of 2,247 inventorsTop 40%
Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #1,862,156 of 4,157,543Top 45%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11513079 Method and system for wafer defect inspection Roger Alvis, Laurens Franz Taemsz Kwakman, Tomas Vystavel 2022-11-29
7453274 Detection of defects using transient contrast Lei Zhong, Kara L. Sherman, Robert W. Fiordalice 2008-11-18