Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7261275 | Relief valve for use in a diaphragm flush valve | — | 2007-08-28 |
| 6923426 | Relief valve for use in a diaphragm flush valve | — | 2005-08-02 |
| 6554018 | Water closet flushing system | — | 2003-04-29 |
| 6227219 | Flush relief valve having improved vacuum breaker | — | 2001-05-08 |
| 6189554 | Flush relief valve having floatable sleeve member | — | 2001-02-20 |
| 6119713 | Apparatus to prevent rapid multiple flushing | — | 2000-09-19 |
| 5325547 | Water closet tank flush valve | — | 1994-07-05 |
| 5027447 | Retractable guard for sewage pipes | — | 1991-07-02 |
| 5026021 | Flush control assembly for pressure flush valves | — | 1991-06-25 |
| 4996725 | Retractable guard for sewage pipes | — | 1991-03-05 |
| 4932080 | Retractable guard for sewage pipes | — | 1990-06-12 |