Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920288 | Piston engine with dynamic groove bearing internal to piston and isolated from compression space | Godefridus Cornelis Goverde, Peter G. M. Simons | 1990-04-24 |
RH
Ronald den Heijer
Overall (All Time): #3,901,426 of 4,157,543Top 95%
1
Patents All Time