Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12179890 | Offshore platform with vertical column assembly | Peter Craig Masson, Jonathan Frederick Jury, Ryan Aldus, Kirsten McNeill, Adnan Hossain +1 more | 2024-12-31 |
| 11828111 | Apparatus and method relating to managed pressure drilling | David Symonds, Richard P. Johnston, Gordon Wallace | 2023-11-28 |
| 11708727 | Connection system for a marine drilling riser | Richard P. Johnston, David Symonds, Gordon Wallace | 2023-07-25 |
| 5327965 | Wellhead completion system | Dale Brian Marietta, Norman Brammer, Casimir J. Fritshe, Lawrence A. Eckert, Allan Sharp | 1994-07-12 |
| 5240076 | Casing tension retainer | Stephen A. Cromar, Eric R. Schwelm, Norman Brammer, Ian Calder | 1993-08-31 |
| 5226484 | Emergency casing support using standard casing hanger | — | 1993-07-13 |
| 5002131 | Casing tensioning mechanism for a casing hanger | Stephen A. Cromar, Eric R. Schwelm | 1991-03-26 |