Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882961 | Cutting portal of an ultra-high pressure fluid jet cutting system | Klaus Biervert, Gerd Kupper | 1989-11-28 |
| 4871155 | Material resting surface | Klaus Bievert, Wolfgang Bruder, Manfred Geilhaupt, Gerd Kupper | 1989-10-03 |
| 4659097 | Bicycle | Gerd Kupper, Burghardt Vossen | 1987-04-21 |
| 4655730 | Automatic gear box | Gerd Kupper, Horst Fenzl | 1987-04-07 |