Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834957 | Progressive spectacle lens having a genuine short progression area | Andrea Welk, Walter Haimeri, Gregor Esser, Helmut Altheimer, Edda Wehner +3 more | 2004-12-28 |
| 6808263 | Progressive spectacle lens producing only slight dynamic distortion | Andrea Welk, Walter Haimerl, Herbert Pfeiffer, Gregor Esser, Helmut Altheimer +1 more | 2004-10-26 |
| 6779889 | Progressive spectacle lens exhibiting only slight dynamic change of the properties of use during a horizontal viewing movements | Andrea Welk, Walter Haimerl, Herbert Pfeiffer, Gregor Esser, Helmut Altheimer +2 more | 2004-08-24 |
| 6776487 | Progressive spectacle lens having only a small change of binocular properties during a movement of glance | Walter Haimerl, Herbert Pfeiffer, Gregor Esser, Helmut Altheimer, Andrea Welk +1 more | 2004-08-17 |
| 6685316 | Method of manufacturing progressive ophthalmic lenses | Gregor Esser, Werner Mueller, Jochen Brosig, Walter Haimerl, Helmut Altheimer +1 more | 2004-02-03 |