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

Darrell Thompson

EPEnnis Paint: 1 patents #4 of 9Top 45%
Grandville, MI: #58 of 219 inventorsTop 30%
Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,601,999 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6679650 Pavement marking system Jerry Britt 2004-01-20
4263108 Control system for the electrolytic recovery of silver from photographic fixing solution Bernard J. Berg 1981-04-21
4235537 Method of testing photographic film using multicolor sensitometer 1980-11-25