Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10174856 | Main valve with grooved rigid internal structure | Paul S. Gifford, Steve Kent Fearnow | 2019-01-08 |
| 9664297 | Main valve with grooved rigid internal structure | Paul S. Gifford, Steve Kent Fearnow | 2017-05-30 |