Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7040841 | Shallow water riser support | Janet Leawood, Peter A. Lunde | 2006-05-09 |
| 6257801 | Riser arrangement for offshore vessel and method for installation | Charles O. Etheridge, Yonghui Liu | 2001-07-10 |
| 6109989 | Submerged pipeline manifold for offloading mooring buoy and method of installation | Charles O. Etheridge, Yonghui Liu, Jerry L. McCollum | 2000-08-29 |
| 5860840 | Disconnectable turret mooring system utilizing a spider buoy | L. Terry Boatman, Brent A. Salyer, Arun Sanjay Duggal | 1999-01-19 |
| 5823131 | Method and apparatus for disconnecting and retrieving multiple risers attached to a floating vessel | L. Terry Boatman, Brent A. Salyer, Jerry L. McCollum, Charles O. Etheridge | 1998-10-20 |