Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364228 | Turbine for gas compression | Hans-Heinrich Henning, Dieter Frohn, Carldieter Hollmann, Frank Diedrichsen | 1994-11-15 |
| 5303253 | Flowing gas laser | Hans-Heinrich Henning, Bernd Ellinghaus, Frank Diedrichsen, Dieter Frohn | 1994-04-12 |