Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8517051 | Automatic flow control regulator valve | Robert Knerr, William Prati | 2013-08-27 |
| 7174915 | Water re-circulation valve | — | 2007-02-13 |
| 6675828 | Nextrol | — | 2004-01-13 |
| 4750472 | Control means and process for domestic hot water re-circulating system | — | 1988-06-14 |