Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362206 | Pump control responsive to voltage-current phase angle | Richard Montgomery, Gerald W. Pippin | 1994-11-08 |
| 5224834 | Pump-off control by integrating a portion of the area of a dynagraph | Richard Montgomery | 1993-07-06 |
| 4583915 | Pump-off controller | Richard Montgomery | 1986-04-22 |
| 4302157 | High fluid level pump off controller and process | Barry S. Welton | 1981-11-24 |