Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9951684 | Spark-ignition engine | Hiroshi Inoue, Maarten G. W. Witmaar | 2018-04-24 |
RD
Rudolf Van Dodewaard
Overall (All Time): #2,886,510 of 4,157,543Top 70%
1
Patents All Time