Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4757689 | Cryopump, and a method for the operation thereof | Hans-Joachim Forth, Hans-Hermann Klein, Wilhelm Strasser | 1988-07-19 |
| 4642995 | Damped displacer refrigerating machine | Rolf Heisig, Hans-Hermann Klein, Karl-Heinz Volker | 1987-02-17 |
| 4614093 | Method of starting and/or regenerating a cryopump and a cryopump therefor | Hans-Joachim Forth, Hans-Hermann Klein | 1986-09-30 |