Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8479509 | Internal combustion engine | Leo Spiegel, Hartmut Voss, Dietmar Schwarzenthal | 2013-07-09 |
| 8365702 | Internal combustion engine | Alfred Elsässer, Jörg Rückauf, Dietmar Schwarzenthal | 2013-02-05 |
| 8235013 | Internal combustion engine | Leo Spiegel, Hartmut Voss, Dietmar Schwarzenthal | 2012-08-07 |
| 4867111 | Arrangement for the actuation of a gas-exchange disk valve | Klaus Schneider, Hans-Joachim Esch | 1989-09-19 |