Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11922918 | Noise controlling method and system | Nicolas Jean Pignier Delafontaine, Christophe Mattei | 2024-03-05 |
| 11087735 | Active noise control method and system | Nicolas Pignier, Christophe Mattei | 2021-08-10 |
| 7539675 | Indexing of digitized entities | Nils Andersson | 2009-05-26 |
| 7516129 | Method of indexing digitized entities in a data collection to facilitate searching | Nils Andersson | 2009-04-07 |
| 4811072 | Semiconductor device | — | 1989-03-07 |
| 4769754 | Stabilized welding power source including a series-resonant current-regulated converter using a transformer having an air-gapped core | Jon O. Reynolds | 1988-09-06 |
| 4623910 | Semiconductor device | — | 1986-11-18 |
| 4465943 | Uninterrupted power system with frequency and phase control | — | 1984-08-14 |
| 4435632 | Three phase square wave welding power supply | — | 1984-03-06 |
| 4370703 | Solid state frequency converter | — | 1983-01-25 |
| 4216367 | Wireless remote control for electric welder | — | 1980-08-05 |