Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5168975 | Motor vehicle drive arrangement | Paulus Heidemeyer, Dag-Arnulf Schlaf | 1992-12-08 |
| 4326500 | Solar radiation collector | Edgard Grundmann, Rudolf Kroll | 1982-04-27 |
| 4296732 | Solar radiation collector | Edgard Grundmann, Rudolf Kroll | 1981-10-27 |
| 4269040 | Heat pump drive | Edgard Grundmann | 1981-05-26 |