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

Irwin Friedman

PEPerkinelmer: 2 patents #151 of 671Top 25%
TTThe Trane: 1 patents #21 of 54Top 40%
La Crosse, WI: #89 of 263 inventorsTop 35%
Wisconsin: #13,258 of 40,088 inventorsTop 35%
Overall (All Time): #1,674,068 of 4,157,543Top 45%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4779966 Single mirror projection optical system 1988-10-25
4772107 Wide angle lens with improved flat field characteristics 1988-09-20
4478277 Heat exchanger having uniform surface temperature and improved structural strength Harry D. Foust, Alan G. Butt 1984-10-23