Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6309141 | Gap spar with ducking risers | Bobby E. Cox, Donald Wayne Allen, Dean Leroy Henning | 2001-10-30 |
| 6263824 | Spar platform | Donald Wayne Allen, Dean Leroy Henning, Ferdinand J. Fischer, III, Bobby E. Cox, David Wayne McMillan +1 more | 2001-07-24 |
| 6227137 | Spar platform with spaced buoyancy | Donald Wayne Allen, Dean Leroy Henning, David Wayne McMillan | 2001-05-08 |
| 6161620 | Deepwater riser system | Bobby E. Cox, Anders G. C. Ekvall | 2000-12-19 |
| 6092483 | Spar with improved VIV performance | Donald Wayne Allen, Dean Leroy Henning, David Wayne McMillan | 2000-07-25 |