Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5311394 | Water-actuated pressurized gas release device | Carlton W. Naab | 1994-05-10 |
| 5023556 | Sensor circuit response to different fluid conductivities and having time delay feature | — | 1991-06-11 |
| 4827844 | Electronic firing circuit | — | 1989-05-09 |
| 4763077 | Sensor circuit responsive to different fluid conductivities | — | 1988-08-09 |
| 4703280 | Fluid conductivity sensor controlling an electro explosive device | — | 1987-10-27 |
| 4680537 | Method and apparatus for testing a conductivity sensing circuit | — | 1987-07-14 |
| 4513248 | Fluid conductivity sensor | — | 1985-04-23 |
| 4382231 | Fluid conductivity sensor | — | 1983-05-03 |