Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5735346 | Fluid level sensing for artificial lift control systems | — | 1998-04-07 |
| 5163512 | Multi-zone open hole completion | Kurt D. Koehler | 1992-11-17 |
| 5108272 | Sucker rod pump | Wayne D. Lentz | 1992-04-28 |
| 5104301 | Sucker rod pump | — | 1992-04-14 |