Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5027038 | DC/AC converter for the supply of a gas and/or vapor discharge lamp | Andrianus M. J. De Bijl, Bernardus J. M. Overgoor | 1991-06-25 |
| 4286122 | Acoustic electrical conversion device with at least one capacitor electret element connected to an electronic circuit | — | 1981-08-25 |