Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10202987 | Valve assembly having dual functionality for directional control of a piston on a fluid actuated device | — | 2019-02-12 |
| 8230932 | Multifunction downhole release tool mechanism with lost motion | James David Ratcliffe, Timothy Michael Gill, Peter Withers, Graham Chadwick | 2012-07-31 |