Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847534 | High-pressure discharge lamp with torsionally wound electrode structure | Wilhelmus C. der Kinderen, deceased | 1989-07-11 |
| 4546305 | Mains-voltage discrimination device | Bernardus H. A. Goddijn | 1985-10-08 |
| 4480229 | Amplifier arrangement with parallel-operated amplifier sections | Theodorus J. Van Kessel, Nico V. Franssen, deceased | 1984-10-30 |
| 4406994 | Wire-wound resistor | Hubertus J. J. Brech, deceased | 1983-09-27 |
| 4399328 | Direction and frequency independent column of electro-acoustic transducers | Nico V. Franssen, deceased | 1983-08-16 |
| 4375623 | Arrangement for the transmission of audio signals | Nico V. Franssen, deceased, Kornelis A. Immink, Eise C. Dijkmans, Mathias H. Geelen | 1983-03-01 |
| 4366346 | Artificial reverberation apparatus | Eise C. Dijkmans, Nico V. Franssen, deceased | 1982-12-28 |
| 4361727 | Sound reproducing arrangement for artificial reverberation | Nico V. Franssen, deceased | 1982-11-30 |
| 4352954 | Artificial reverberation apparatus for audio frequency signals | Nico V. Franssen, deceased | 1982-10-05 |
| RE30513 | Color splitting prism assembly | Adrianus A. J. Bleukens, deceased, Jacobus Stoffels, Petrus J. M. Peters | 1981-02-10 |