Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5013218 | Submersible pneumatic pump for water table | — | 1991-05-07 |
| 4768373 | Corrosion and erosion sensor | — | 1988-09-06 |
| 4645431 | Hydraulic pumping apparatus and method of operation | Clyde Donald Wilson, Robert Vanlangendonck | 1987-02-24 |
| 4643228 | Convertible high or low pressure pilot valve | — | 1987-02-17 |
| 4414995 | Three-way hydraulic controller | — | 1983-11-15 |
| 4306586 | Three way valve | — | 1981-12-22 |