| 7967066 |
Method and apparatus for Christmas tree condition monitoring |
Daniel McStay, Aidan Nolan, Gordon Shiach, Espen Rokke |
2011-06-28 |
| 7845404 |
Optical sensing system for wellhead equipment |
Daniel McStay, Aidan Nolan, Gordon Shiach, Espen Rokke |
2010-12-07 |
| 5839512 |
Adjustable casing hanger with contractible load shoulder and metal sealing ratch latch adjustment sub |
Steven Robert Malone, Gavin Reilly |
1998-11-24 |
| 5013187 |
Positioning components and energizing sealing assemblies therefor |
Brian MacIntyre, Frank Close |
1991-05-07 |
| 4961444 |
Clamp assemblies |
Ian Morgan |
1990-10-09 |
| 4957313 |
Emergency suspension system for drill casings |
Brian MacIntyre, Frank Close |
1990-09-18 |
| 4951972 |
Rotatable sealing assemblies |
Brian MacIntyre, Frank Close |
1990-08-28 |