Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8605272 | Tool, tool set and method of setting the pitch of the blades of a model propeller | Jean-Marc Mercier, Philippe De Laroque, Thierry Bergeaud, Jean-Luc Larcher, Jean-Marc Prosper +1 more | 2013-12-10 |
| 4854689 | Progressive ophthalmic lens | Gerard Obrecht | 1989-08-08 |
| 4838674 | Multifocal ophthalmic lens | — | 1989-06-13 |
| 4796988 | Progressive lens | Gerard Obrecht | 1989-01-10 |