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

Kenneth A. Epstein

3M: 3 patents #115 of 1,276Top 10%
Okabena, MN: #16 of 111 inventorsTop 15%
Minnesota: #697 of 7,038 inventorsTop 10%
Overall (2021): #75,170 of 548,734Top 15%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11187847 Backlight including wide-web turning film and reflective polarizer with quarter-wave retarder Quinn D. Sanford, Matthew B. Johnson, Gary T. Boyd 2021-11-30
11099314 Light control film with turning film and lenticular diffuser for view enhancement in the horizontal plane Nicholas A. Johnson, Robert M. Emmons 2021-08-24
10955592 Multiplexing backlight with asymmetric turning film Nicholas A. Johnson, Michael E. Lauters, Shannon L. Siefken, Gary T. Boyd 2021-03-23