Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4454977 | Process of producing corrosion-resistant tubular connection pieces | Harry Heinke, Franz Schreiber, Waltraud Werdecker | 1984-06-19 |
| 4440178 | Implantable electrode | Adrien Bussard, Franz Sperner | 1984-04-03 |
| 4414014 | Method of producing a bubble-free vitreous material | Rolf Bruning, Poul E. Breidenbach, Norbert Cibis, Waltraud Werdecker | 1983-11-08 |
| 4359977 | Heater plug for diesel engines | Franz Sperner, Wilhelm Zwergel | 1982-11-23 |
| 4358663 | Heater plug for diesel engines | Franz Sperner, Wilhelm Zwergel | 1982-11-09 |
| 4355082 | Ultra-thin wire for semiconductor connections | Albrecht Bischoff | 1982-10-19 |
| 4339644 | Low-power electric contact | Elke Biberbach, Albrecht Bischoff, Nils Harmsen | 1982-07-13 |
| 4303635 | Zinc sulfide body for optical purposes | Waltraud Werdecker | 1981-12-01 |