Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6457187 | Pressurized water closet flushing system | Grayson William Hand | 2002-10-01 |
| 5553333 | Pressurized water closet flushing system | — | 1996-09-10 |
| 5136732 | Commode flushing apparatus | — | 1992-08-11 |