Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854825 | Multi-stage vacuum pump | Eckhard Bez | 1989-08-08 |
| 4790726 | Reciprocatory piston and cylinder machine | Guenter K. W. Balkau, Eckhard Bez | 1988-12-13 |
| 4699572 | Reciprocatory piston and cylinder machine | Guenter K. W. Balkau, Eckhard Bez | 1987-10-13 |
| 4560327 | Porting and ducting arrangement | Eckhard Bez | 1985-12-24 |