Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5794647 | Valve system | Martin W Denmark | 1998-08-18 |
| 5385333 | Method of making valve disc and drive shaft assembly | Michael Morris | 1995-01-31 |
| 5297778 | Valve disc and drive shaft assembly | Michael Morris | 1994-03-29 |
| 5226630 | Valve disc and drive shaft assembly | Michael Morris | 1993-07-13 |