Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8128060 | Non-sliding solenoid valve | — | 2012-03-06 |
| 7975716 | Solenoid valve puck assembly and method | — | 2011-07-12 |
| 7163187 | Non-sliding valve | Paul E. Welker | 2007-01-16 |
| 7159843 | Non-sliding valve | Paul E. Welker | 2007-01-09 |
| 7032905 | Leak resistant seal | — | 2006-04-25 |
| 6135132 | Valve seat arrangement | Paul E. Welker | 2000-10-24 |
| 6058967 | Magnetic activation system for switch | Paul E. Welker | 2000-05-09 |
| 5199459 | Dual series valve | — | 1993-04-06 |
| 5150879 | Thruster valve | — | 1992-09-29 |