Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10841691 | Sound system for video screens | — | 2020-11-17 |
| 9191769 | Method and a device for reproducing low frequency sound in a rectangular room | — | 2015-11-17 |
| 7777947 | Projection screen, in particular for video projection reducing the Moiré effect | Yves Trelohan | 2010-08-17 |
| 7489443 | Roll-up projection screen | Daniel Bujon, Jean-Pierre Charrier | 2009-02-10 |
| 6552847 | Projection screen of retractable type | — | 2003-04-22 |