Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9759344 | Flush valve seat | Frank A. Stauder, Xan Vy Du | 2017-09-12 |
| 9127778 | Flush valve | Frank A. Stauder, Xan Vy Du | 2015-09-08 |
| 9052028 | Flush valve pressure balance | Frank A. Stauder, Xan Vy Du | 2015-06-09 |
| 8826937 | Flush valve anti-backflow cartridge | Frank A. Stauder, Xan Vy Du | 2014-09-09 |