Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9476265 | Trolley apparatus | Paul Stephen Tetley, Daniel B. Holsberg | 2016-10-25 |
| 8696289 | Cartridge tubular handling system | Paul Stephen Tetley, Daniel B. Holsberg | 2014-04-15 |
| 8215888 | Cartridge tubular handling system | Paul Stephen Tetley, Daniel B. Holsberg | 2012-07-10 |
| 6701861 | Semi-submersible floating production facility | Joe W. Key, Paul Ray Geiger, Sr., Robert Edward Clague | 2004-03-09 |
| 6378450 | Dynamically positioned semi-submersible drilling vessel with slender horizontal braces | Eugene Begnaud, Bruce Malcolm | 2002-04-30 |