Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7635523 | Grinding and stamping behavior of ophthalmic glasses with hydrophobic coating | Baerbel Goetz, Cecile Stolz | 2009-12-22 |
| 6853471 | Photochromic synthetic resin object with permanently increased contrast | Hans-Peter Sommer, Michael Voegt, Manfred Melzig | 2005-02-08 |