Douglas Trott

Follow

Person

Coweta, OK, US

People

Patents Grantslast 30 patents

Information Patent Grant
Closure mechanism with integrated actuator for subsurface valves
- Patent number 6,957,703
- Issue date Oct 25, 2005
- Baker Hughes Incorporated
- Douglas Trott
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electro-hydraulic surface controlled subsurface safety valve actuator
- Patent number 6,269,874
- Issue date Aug 7, 2001
- Baker Hughes Incorporated
- Michael S. Rawson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electric safety valve actuator
- Patent number 6,253,843
- Issue date Jul 3, 2001
- Baker Hughes Incorporated
- Michael S. Rawson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electrically driven actuator with failsafe feature
- Patent number 5,984,260
- Issue date Nov 16, 1999
- Baker Hughes Incorporated
- Michael S. Rawson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Undulating transverse interface for curved flapper seal
- Patent number 5,918,858
- Issue date Jul 6, 1999
- Baker Hughes Incorporated
- Michael S. Rawson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Undulating transverse interface for curved flapper seal
- Patent number 5,682,921
- Issue date Nov 4, 1997
- Baker Hughes Incorporated
- Michael S. Rawson
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Closure mechanism with integrated actuator for subsurface valves
- Publication number 20030121665
- Publication date Jul 3, 2003
- Douglas Trott
- E21 - EARTH DRILLING MINING