Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10584572 | Method and system for damping vibrations in a tool string system | Sicco Dwars | 2020-03-10 |
| 9932811 | Method and system for damping vibrations in a tool string system | Sicco Dwars, Douwe Johannes Runia | 2018-04-03 |
| 9920612 | Method and system for damping vibrations in a tool string system | Sicco Dwars | 2018-03-20 |
| 5520247 | Method of producing a fluid from an earth formation | Robert H. J. Gmelig Meyling, Robert B. Stewart | 1996-05-28 |
| 5117926 | Method and system for controlling vibrations in borehole equipment | Robert Nicholas Worrall, Johan Dirk Jansen, Bartholomeus Gerardus Gosewinus Van Walstijn | 1992-06-02 |
| 4890682 | Apparatus for vibrating a pipe string in a borehole | Robert Nicholas Worrall | 1990-01-02 |