Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664692 | Electrical machine | — | 2003-12-16 |
| 4521925 | Nonrecirculating vacuum flush toilet system utilizing fresh water | Tyen C. Chen, Forrest B. Busching, William D. Hale | 1985-06-11 |
| 4332041 | Pressurized drain for toilet waste tank | — | 1982-06-01 |