Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11306742 | Submersible pneumatic pump with air-exclusion valve | — | 2022-04-19 |
| 8960675 | Game using images produced by wetting medium | — | 2015-02-24 |
| 6095759 | Submersible pump having float actuated valve | — | 2000-08-01 |
| 6027314 | Pneumatically powered submersible fluids pump with casing activator | — | 2000-02-22 |
| 5971715 | Pneumatic pump having radial ball check valve array | — | 1999-10-26 |
| 5944490 | Pneumatically operated submersible pump with float control | — | 1999-08-31 |
| 5794656 | Ball check valve with offset open ball movement | — | 1998-08-18 |
| 5704772 | Controller less resilient bladder pump for reduced diameter casing with long cycle | — | 1998-01-06 |
| 5487647 | Pneumatically powered submersible fluids pump with casing activator and biasing means | — | 1996-01-30 |
| 5474685 | Apparatus and method for detecting and recovering immiscible liquids of different densities | — | 1995-12-12 |
| 5470206 | Pneumatically powered submersible fluids pump with casing activator | — | 1995-11-28 |
| 5004405 | Pneumatically powered submersible fluids pump with integrated controls | — | 1991-04-02 |
| 4761225 | Apparatus for controlling the removal of liquid hydrocarbons from groundwater | — | 1988-08-02 |
| 4663037 | Apparatus for recovery of liquid hydrocarbons from groundwater | — | 1987-05-05 |
| 4497370 | Apparatus and method for recovery of liquid hydrocarbons from ground water | — | 1985-02-05 |