Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8882174 | Operating system and method for a vehicle having an automatically closing hatch | — | 2014-11-11 |
| 6964478 | Progressive spectacle lens | Andrea Welk, Peter Baumbach, Walter Haimerl, Herbert Pfeiffer, Gregor Esser +8 more | 2005-11-15 |
| 6669337 | Progressive spectacle lens with low swaying effects | Andrea Welk, Peter Baumbach, Walter Haimerl, Herbert Pfeiffer, Norbert Awrath +8 more | 2003-12-30 |
| 6655802 | Method for producing eyeglasses | Martin Zimmermann, Peter Baumbach, Walter Haimerl, Herbert Pfeiffer, Gregor Esser +5 more | 2003-12-02 |