Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659126 | Backflow preventor with adjustable outflow direction | Charles W. Dunmire, Dennis Whitelaw | 2003-12-09 |
| 5503176 | Backflow preventor with adjustable cutflow direction | Charles W. Dunmire, Dennis Whitelaw | 1996-04-02 |
| 5385166 | Backflow preventor with adjustable outflow direction | Charles W. Dunmire, Dennis Whitelaw | 1995-01-31 |