Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12111519 | Eyeglass lens, use of an eyeglass lens, and process for manufacturing an eyeglass lens | Andrea Welk, Hans-Peter Sommer, Herbert Zinner | 2024-10-08 |
| 6853471 | Photochromic synthetic resin object with permanently increased contrast | Hans-Peter Sommer, Gerd-Peter Scherg, Manfred Melzig | 2005-02-08 |