Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234193 | Dual drain outlet box | Philip A. Mulvey, Jerry P. Mitchell, Sam H. Howe, Charles T. Crisman | 2001-05-22 |
| 6125881 | Dual drain outlet box | Philip A. Mulvey, Jerry P. Mitchell, Sam H. Howe, Charles T. Crisman | 2000-10-03 |
| 5983923 | Water service box and connectors for PEX pipe | Philip A. Mulvey | 1999-11-16 |
| 5931200 | Connector system for attachment of flexible hose to PEX supply line | Philip A. Mulvey | 1999-08-03 |
| 5881397 | Drain closure | — | 1999-03-16 |
| 5566708 | Valve connector system for plastic pipe | — | 1996-10-22 |
| 4919337 | Arc adjustment for irrigation sprinkler | Timothy O. Van Leeuwen | 1990-04-24 |
| 4790481 | Pop-up irrigation sprinkler | Charles A. Ray | 1988-12-13 |
| 4632312 | Impact drive sprinkler | Kenneth W. Premo | 1986-12-30 |
| D287267 | Impact drive sprinkler | Kenneth W. Premo | 1986-12-16 |