John David SANGSTER

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Aberdeen, GB

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Patents Grantslast 30 patents

Information Patent Grant
Valve
- Patent number 11,047,206
- Issue date Jun 29, 2021
- Interventek Subsea Engineering Limited
- Gavin David Cowie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gate valve
- Patent number 10,801,287
- Issue date Oct 13, 2020
- Interventek Subsea Engineering Limited
- Gavin David Cowie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Test tree and actuator
- Patent number 10,683,721
- Issue date Jun 16, 2020
- Interventek Subsea Engineering Limited
- Gavin David Cowie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary actuator
- Patent number 10,267,342
- Issue date Apr 23, 2019
- Interventek Subsea Engineering Limited
- Gavin David Cowie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve apparatus
- Patent number 10,246,969
- Issue date Apr 2, 2019
- Interventek Subsea Engineering Limited
- Gavin David Cowie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Intervention system and apparatus
- Patent number 10,066,458
- Issue date Sep 4, 2018
- Expro North Sea Limited
- Paul Deacon
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
VALVE
- Publication number 20200056447
- Publication date Feb 20, 2020
- Interventek Subsea Engineering Limited
- Gavin David Cowie
- E21 - EARTH DRILLING MINING
Information Patent Application
GATE VALVE
- Publication number 20190277106
- Publication date Sep 12, 2019
- Interventek Subsea Engineering Limited
- Gavin David COWIE
- E21 - EARTH DRILLING MINING
Information Patent Application
VALVE APPARATUS
- Publication number 20170138152
- Publication date May 18, 2017
- Gavin David COWIE
- E21 - EARTH DRILLING MINING
Information Patent Application
TEST TREE AND ACTUATOR
- Publication number 20170122057
- Publication date May 4, 2017
- Gavin David COWIE
- E21 - EARTH DRILLING MINING
Information Patent Application
ROTARY ACTUATOR
- Publication number 20170114808
- Publication date Apr 27, 2017
- Gavin David COWIE
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
INTERVENTION SYSTEM AND APPARATUS
- Publication number 20160245041
- Publication date Aug 25, 2016
- Paul Deacon
- E21 - EARTH DRILLING MINING