Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10371154 | Apparatus, system and method for pumping gaseous fluid | Freddie George Walton, David Thomas Jolly, Steven K. Tetzlaff | 2019-08-06 |
| 9829001 | Electric submersible pump assembly bearing | Thomas John Gottschalk, Wesley John Nowitzki, John Vanderstaay Kenner | 2017-11-28 |
| 9719523 | Apparatus, system and method for pumping gaseous fluid | Steven K. Tetzlaff | 2017-08-01 |
| 9638207 | Centrifugal pump for handling abrasive-laden fluid | Thomas John Gottschalk, Clint Franklin Hall, Wesley John Nowitzki | 2017-05-02 |
| 8684679 | Abrasion resistance in well fluid wetted assemblies | Steven K. Tetzlaff, Freddie George Walton, David Thomas Jolly | 2014-04-01 |