Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989102 | Apparatus for facetting ophthalmic lenses | Lutz Gottschald | 1999-11-23 |
| 5630746 | Spectacle lens edge grinding machine | Lutz Gottschald | 1997-05-20 |
| 5538459 | Process for measuring forward and rearward three-dimensional curves and thickness of a corrective lens | Lutz Gottschald | 1996-07-23 |
| 4964239 | Machine for grinding the edges of a lens | Lutz Gottschald | 1990-10-23 |