| 12018770 |
Mechanical and combined mechanical/electronic actuator for anhydrous ammonia emergency shut off valves |
William Browning Washington, IV, William Henry Sands, III |
2024-06-25 |
| 12000499 |
Electronic actuator for anhydrous ammonia emergency shut off valves |
William Henry Sands, III, William Henry Sands, Jr., Brently Craig Wilkerson, Patrick Lee Hodges, William Browning Washington, IV |
2024-06-04 |
| 11353136 |
Electronic actuator for anhydrous ammonia emergency shut off valves |
William Henry Sands, III, William Henry Sands, Jr., Brently Craig Wilkerson, Patrick Lee Hodges, William Browning Washington, IV |
2022-06-07 |
| D910150 |
Emergency shut off actuator for anhydrous ammonia valves |
William Henry Sands, III, William Henry Sands, Jr., Brently Craig Wilkerson, Patrick Lee Hodges, William Browning Washington, IV |
2021-02-09 |
| 10774944 |
Electronic actuator for anhydrous ammonia emergency shut off valves |
William Henry Sands, III, William Henry Sands, Jr., Brently Craig Wilkerson, Patrick Lee Hodges, William Browning Washington, IV |
2020-09-15 |