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

David L. Wortman

3M: 26 patents #455 of 11,543Top 4%
Woodbury, MN: #156 of 1,562 inventorsTop 10%
Minnesota: #2,420 of 52,454 inventorsTop 5%
Overall (All Time): #156,097 of 4,157,543Top 4%
26 Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
5095415 Light fixture for externally illuminated sign Harry B. Anderson, Sanford Cobb, Jr. 1992-03-10