Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879251 | Method of making series-connected, thin-film solar module formed of crystalline silicon | Wolfgang Kruehler | 1989-11-07 |
| 4406583 | Centrifugal pump with double volute casing | Karl H. Becker, Peter Hergt, Heinz-Dieter Hellmann | 1983-09-27 |
| 4383800 | Centrifugal pump with open double volute casing | Karl H. Becker, Peter Hergt, Heinz-Dieter Hellmann | 1983-05-17 |