Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10132124 | Anti-rotation device for pipe string | Martin James Ward | 2018-11-20 |
| 9657531 | Merlin drilling riser assembly | — | 2017-05-23 |
| 9334988 | Telescoping pipe connector | Martin James Ward | 2016-05-10 |
| 9121229 | Merlin drilling riser assembly | — | 2015-09-01 |
| 8518176 | Suppression of antagonistic hydration reactions in blended cements | Denise A. Silva, Josephine H. Cheung, Paul J. Sandberg, Lawrence R. Roberts, Durga V. Subramanian +1 more | 2013-08-27 |
| 5954374 | Pipe connectors | Norman Lumsden | 1999-09-21 |
| 4471844 | Device for containing and removing drilling slurry | — | 1984-09-18 |