Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7314539 | Pressure electrolyzer and method for operating one such electrolyzer | Pietro d'Erasmo, Hans Hofmann, Marko Raemisch | 2008-01-01 |
| 7285192 | Pressure electrolyzer and method for switching off a pressure electrolyzer | Oddmund Wallevik | 2007-10-23 |
| 5384208 | Cell structure for electrolyzer units and fuel cells | Hans Hofmann, Jurgen Hildebrandt | 1995-01-24 |
| 4662582 | Lightweight aircraft | — | 1987-05-05 |
| 4611774 | Propeller drive assembly | — | 1986-09-16 |
| 4579301 | Pilot module | — | 1986-04-01 |
| 4560119 | Lightweight aircraft | — | 1985-12-24 |
| 4500053 | Propeller and engine mounting device | — | 1985-02-19 |
| 4382566 | Lightweight aircraft | — | 1983-05-10 |
| 4281518 | Method and apparatus for separating particular components of a gas mixture | Martin Muller, Albert Seidel, Gunther Schmidt, Holm Schubert-Klempnauer, Werner Malburg | 1981-08-04 |