Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9746080 | High pressure seal assembly for a moveable shaft | — | 2017-08-29 |
| 9540926 | Mud-pulse telemetry system including a pulser for transmitting information along a drill string | Richard Rothstein | 2017-01-10 |