Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779588 | Air-cooled multi-cylinder internal combustion engine | Gerhard-Wilhelm Ziegler, Walter Mittermeier | 1988-10-25 |
| 4680493 | Ventilating device for a generator | Gerhard-Wilhelm Ziegler, Rudolf Herrmann | 1987-07-14 |
| 4640240 | Arrangement for limiting radial thermal expansions of cylinders of a reciprocating piston internal combustion engine | Gerhard-Wilhelm Ziegler, Rolf von Sivers | 1987-02-03 |
| 4563984 | Suction pipe apparatus for an internal-combustion engine | Gerhard-Wilhelm Ziegler, Rolf von Sivers | 1986-01-14 |