Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10329841 | Wellbore drilling with a trolley and a top drive device | Pieter Dirk Melis Van Duivendijk, Diederick Bernardus Wijning, Jasper Hendrik Frank Bakker, Adriaan Van Swieten, Joop Roodenburg | 2019-06-25 |