Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11814959 | Methods for increasing the amplitude of reciprocal extensions and contractions of a shock tool for drilling operations | Sean Matthew Donald, Yong Yang, Roman Kvasnytsia | 2023-11-14 |
| 11220866 | Drilling oscillation systems and shock tools for same | Sean Matthew Donald, Yong Yang, Roman Kvasnytsia | 2022-01-11 |
| 10718168 | Drilling oscillation systems and optimized shock tools for same | Sean Matthew Donald, Yong Yang | 2020-07-21 |