Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6189502 | Grooved double combustion chamber rotary engine | — | 2001-02-20 |
| 6010322 | Rotational power generating device | — | 2000-01-04 |
| 5820527 | Height adjusting device for baby walkers | — | 1998-10-13 |
| D397166 | Baby walker | — | 1998-08-18 |
| 5596963 | Stage combustion rotary engine | — | 1997-01-28 |