Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8757277 | Torque reaction device for pipe running tool | Richard Lee Murray, Jr., Richard Verhoef | 2014-06-24 |
| 8356674 | Tubular running tool and methods of use | Richard Lee Murray, Jr., Keith Mitchell Wien, Neils De Keijzer, Antonius Dimphena Maria Krijnen, Rene Mulder +3 more | 2013-01-22 |
| 7303021 | Wellbore rig elevator systems | Mike Schats, Bob DePont, Anton Krijnen | 2007-12-04 |
| D533432 | Handle | Mike Schats, Bob DePont, Anton Krijnen | 2006-12-12 |
| 4651249 | Magnetic head having a step-shaped gap | Thijs W. Bril, Lambertus Postma, Cornelis H. M. Witmer | 1987-03-17 |