Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9784063 | Subsea production system with downhole equipment suspension system | David R. June, David H. Theiss, Scott D. Ward, Jack H. Vincent | 2017-10-10 |
| 9476265 | Trolley apparatus | Daniel B. Holsberg, Calvin Vinal Norton | 2016-10-25 |
| 8696289 | Cartridge tubular handling system | Daniel B. Holsberg, Calvin Vinal Norton | 2014-04-15 |
| 8215888 | Cartridge tubular handling system | Daniel B. Holsberg, Calvin Vinal Norton | 2012-07-10 |