Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5722361 | Internal combustion engine with pistons that rotate about a center line | Willi Springer, Dietrich Eckhardt | 1998-03-03 |
| 5647343 | Latent store | — | 1997-07-15 |
| 5324182 | Rotating piston internal combustion engine with ring gear elastically coupled to the housing | Dietrich Eckhardt | 1994-06-28 |
| 4370109 | Rotary piston-internal combustion engine having a central axis | Dietrich Eckhardt | 1983-01-25 |