Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Jochen Brosig +5 more | 2003-12-02 |