Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9894853 | Anti-siphon valve with freeze protection | — | 2018-02-20 |
| 9504214 | Anti-siphon valve with freeze protection | — | 2016-11-29 |
| 7934515 | Backflow bonnet and poppet | Charles G. Freitag | 2011-05-03 |
| D315788 | Sprinkler side outlet 90 degree fitting | — | 1991-03-26 |
| 4971366 | Plastic pipe fitting | — | 1990-11-20 |