Quangen Du

Person

Fresno, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Systems and techniques for controlling and monitoring downhole oper...
- Patent number 11,274,522
- Issue date Mar 15, 2022
- Schlumberger Technology Corporation
- Chao Wang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Packer system having lockable mechanism
- Patent number 10,808,493
- Issue date Oct 20, 2020
- Schlumberger Technology Corporation
- Quangen Du
- E21 - EARTH DRILLING MINING
Information Patent Grant
Systems and techniques for controlling and monitoring downhole oper...
- Patent number 10,502,024
- Issue date Dec 10, 2019
- Schlumberger Technology Corporation
- Chao Wang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Propellant energy to operate subsea equipment
- Patent number 9,863,202
- Issue date Jan 9, 2018
- Schlumberger Technology Corporation
- Gary L. Rytlewski
- F42 - AMMUNITION BLASTING
Information Patent Grant
Piping system having an insulated annulus
- Patent number 9,243,478
- Issue date Jan 26, 2016
- Schlumberger Technology Corporation
- Quangen Du
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Temperature compensated accumulator
- Patent number 8,978,766
- Issue date Mar 17, 2015
- Schlumberger Technology Corporation
- Peter Nellessen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SYSTEMS AND TECHNIQUES FOR CONTROLLING AND MONITORING DOWNHOLE OPER...
- Publication number 20200115992
- Publication date Apr 16, 2020
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Chao Wang
- E21 - EARTH DRILLING MINING
Information Patent Application
PACKER SYSTEM HAVING LOCKABLE MECHANISM
- Publication number 20180106127
- Publication date Apr 19, 2018
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Quangen Du
- E21 - EARTH DRILLING MINING
Information Patent Application
SYSTEMS AND TECHNIQUES FOR CONTROLLING AND MONITORING DOWNHOLE OPER...
- Publication number 20180051535
- Publication date Feb 22, 2018
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Chao Wang
- E21 - EARTH DRILLING MINING
Information Patent Application
Propellant Energy to Operate Subsea Equipment
- Publication number 20160312563
- Publication date Oct 27, 2016
- SCHLUMBERGER CANADA LIMITED
- Gary L. Rytlewski
- F42 - AMMUNITION BLASTING
Information Patent Application
PIPING SYSTEM HAVING AN INSULATED ANNULUS
- Publication number 20130092389
- Publication date Apr 18, 2013
- Quangen Du
- E21 - EARTH DRILLING MINING
Information Patent Application
TEMPERATURE COMPENSATED ACCUMULATOR
- Publication number 20130061937
- Publication date Mar 14, 2013
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Peter Nellessen
- E21 - EARTH DRILLING MINING
Information Patent Application
ACCUMULATOR HAVING OPERATING FLUID VOLUME INDEPENDENT OF EXTERNAL H...
- Publication number 20130062069
- Publication date Mar 14, 2013
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Quangen DU
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Person

Patents Grantslast 30 patents

Systems and techniques for controlling and monitoring downhole oper...

Packer system having lockable mechanism

Systems and techniques for controlling and monitoring downhole oper...

Propellant energy to operate subsea equipment

Piping system having an insulated annulus

Temperature compensated accumulator

Patents Applicationslast 30 patents

SYSTEMS AND TECHNIQUES FOR CONTROLLING AND MONITORING DOWNHOLE OPER...

PACKER SYSTEM HAVING LOCKABLE MECHANISM

SYSTEMS AND TECHNIQUES FOR CONTROLLING AND MONITORING DOWNHOLE OPER...

Propellant Energy to Operate Subsea Equipment

PIPING SYSTEM HAVING AN INSULATED ANNULUS

TEMPERATURE COMPENSATED ACCUMULATOR

ACCUMULATOR HAVING OPERATING FLUID VOLUME INDEPENDENT OF EXTERNAL H...