Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6685316 | Method of manufacturing progressive ophthalmic lenses | Peter Baumbach, Gregor Esser, Werner Mueller, Jochen Brosig, Helmut Altheimer +1 more | 2004-02-03 |
| 6669337 | Progressive spectacle lens with low swaying effects | Andrea Welk, Peter Baumbach, Herbert Pfeiffer, Norbert Awrath, Gregor Esser +8 more | 2003-12-30 |
| 6655802 | Method for producing eyeglasses | Martin Zimmermann, Peter Baumbach, Herbert Pfeiffer, Gregor Esser, Jochen Brosig +5 more | 2003-12-02 |
| 6231182 | Monofocal ophthalmic lens having two aspherical surfaces | Gunther Guilino, Herbert Pfeiffer, Helmut Altheimer, Gregor Esser | 2001-05-15 |
| 6213603 | Progressive ophthalmic lens | Helmut Altheimer, Gregor Esser, Herbert Pfeiffer, Rudolf Barth, Monika Fuess | 2001-04-10 |
| 5992998 | Ophthalmic lens having a progressive effect | Herbert Pfeiffer, Helmut Altheimer | 1999-11-30 |
| 5854669 | Series of lenses | Helmut Altheimer, Norbert Awrath, Rudolf Barth, Peter Baumbach, Jochen Brosig +6 more | 1998-12-29 |