Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8490647 | Fluid pressure control device | — | 2013-07-23 |
| 8336575 | Fluid pressure control device | — | 2012-12-25 |
| 7414920 | Acoustic generator for distance sounding with microphone designed for efficient echo detection | Steven Lee Herbruck | 2008-08-19 |
| 7397729 | Acoustic generator for distance sounding with a new and novel portal structure for the efficient firing of the pressure chamber | — | 2008-07-08 |
| 7228934 | Acoustic generator for distance sounding with a firing mechanism independent of the pressure equilibration force | — | 2007-06-12 |
| D503380 | Well sound generator with digital read-out display | — | 2005-03-29 |
| D487251 | Well sound generator | — | 2004-03-02 |