Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6763843 | Automatically switching valve with remote signaling | Paul D. Primrose | 2004-07-20 |
| 6536456 | Automatically switching valve with remote signaling | Paul D. Primrose | 2003-03-25 |
| 5868162 | Automatically switching valve with remote signaling | — | 1999-02-09 |
| 5365068 | Sun protection calculator and timer | — | 1994-11-15 |