Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7338347 | Spectacle-lens edging machine | Lutz Gottschald, Joerg Luderich | 2008-03-04 |
| 7137871 | Spectacle lens edging machine | Lutz Gottschald, Joerg Luderich | 2006-11-21 |
| 6966824 | Arrangement for detachably securing a grinding wheel or a group of grinding wheels on a wheel spindle | Ansgar Schmitz | 2005-11-22 |
| 6902468 | Assembly for machining the edges of spectacle lenses | Joerg Luderich, Ralf Werner | 2005-06-07 |
| 6855042 | Retaining device for a block or suction element | Ralf Werner | 2005-02-15 |
| 6579155 | Method and apparatus for form machining the peripheral edge of spectacle lenses | Joerg Luderich | 2003-06-17 |
| 4870785 | Lens holder for an apparatus for grinding the edges of a lens | — | 1989-10-03 |
| 4841677 | Device for disengaging a suction mechanism from a lens | — | 1989-06-27 |
| 4837978 | Machine for grinding the edges of lenses | Gunter Barwasser | 1989-06-13 |
| 4766699 | Apparatus for grinding the edges of lenses | Lutz Gottschald, Gunther Barwasser | 1988-08-30 |
| 4637168 | Spectacle lens edge grinding machine | Gunther Barwasser | 1987-01-20 |
| 4543752 | Device for centering spectacle lenses and for fastening a holding part on the lenses | — | 1985-10-01 |