Daniel A. WILLOUGHBY

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Uig, GB

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Patents Grantslast 30 patents

Information Patent Grant
Subsea wellhead providing controlled access to a casing annulus
- Patent number 8,746,347
- Issue date Jun 10, 2014
- Aker Subsea Limited
- Daniel A Willoughby
- E21 - EARTH DRILLING MINING
Information Patent Grant
Insertion of a pack-off into a wellhead
- Patent number 8,678,093
- Issue date Mar 25, 2014
- Aker Subsea Limited
- Daniel A Willoughby
- E21 - EARTH DRILLING MINING
Information Patent Grant
Subsea wellhead with segmented fatigue reduction sleeve
- Patent number 8,544,550
- Issue date Oct 1, 2013
- Aker Subsea Limited
- Daniel A Willoughby
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SUBSEA WELLHEAD PROVIDING CONTROLLED ACCESS TO A CASING ANNULUS
- Publication number 20110253378
- Publication date Oct 20, 2011
- Daniel A. WILLOUGHBY
- E21 - EARTH DRILLING MINING
Information Patent Application
SUBSEA WELLHEAD WITH SEGMENTED FATIGUE REDUCTION SLEEVE
- Publication number 20110253381
- Publication date Oct 20, 2011
- Daniel A. WILLOUGHBY
- E21 - EARTH DRILLING MINING
Information Patent Application
INSERTION OF A PACKOFF INTO A WELLHEAD
- Publication number 20110253388
- Publication date Oct 20, 2011
- Daniel A. WILLOUGHBY
- E21 - EARTH DRILLING MINING