Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7581951 | Dental treatment element | Peter Frey | 2009-09-01 |
| 6722881 | Pneumatic-electric converter for dental instruments | Hans-Walter Altendorf | 2004-04-20 |
| 5008979 | Textile-fiber treating grooved roller and a wire with teeth having a foot portion indented for force-fitting the wire into the groove and method of making same | Gangolf Palm, Hans-Joachim Heinemann | 1991-04-23 |
| 4339910 | Open-end spinning machine | Ramadan A. Ali, Heinz Muller, Peter Artzt, Anton Schenek | 1982-07-20 |