Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8752619 | Apparatus for suspending a downhole well string | Anton Krijnen, Niels De Keijzer, Richard Verhoef | 2014-06-17 |
| 8632111 | Apparatus and method for facilitating handling pipe | Anton Krijnen, Neils DeKeijzer, Joe Rodney Berry | 2014-01-21 |
| 8356674 | Tubular running tool and methods of use | Richard Lee Murray, Jr., Pieter Dekker, Keith Mitchell Wien, Neils De Keijzer, Antonius Dimphena Maria Krijnen +3 more | 2013-01-22 |
| 6896048 | Rotary support table | David Mason, Anton Krijnen | 2005-05-24 |