Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136970 | Positive displacement pump with shaft-mounted sleeve | — | 2021-10-05 |
| 9273555 | Positive displacement pump with improved sealing arrangement and related method of making | James G. Rankel | 2016-03-01 |
| 9062676 | Positive displacement pump with improved sealing arrangement and related method of making | — | 2015-06-23 |