Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6752167 | Freeze resistant automatic draining wall hydrant with dual check vacuum breaker | William Anthony Stanaland | 2004-06-22 |
| 6139730 | Multichamber gravity operated oil-water separator | Steven E. Whitmire | 2000-10-31 |
| 5935449 | Automated separator of light fluids by specific gravity | Anthony Stanaland | 1999-08-10 |
| 4844116 | Quarter turn water hydrant | Jeffrey L. Donaldson | 1989-07-04 |