Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5166427 | Preparation of acyl chlorides | Andreas Hohmann, Enrique Freudenberg, Wolfgang Reuther | 1992-11-24 |
| 4885530 | Device for early detection of breaks and marginal wear in the cutting edges of tools | Volker Richey, Hans-Peter Schneider | 1989-12-05 |
| 4784542 | Tool-mounting assembly having an exchangeable tool head | Hans Tack | 1988-11-15 |
| 4744241 | Method and device for detecting a wear limit or break in the cutting edge of a tool | — | 1988-05-17 |
| 4357956 | Safety valve with vibration-damped valve spring | Hans Anselmann | 1982-11-09 |