Khoi Trinh

Person

Spring, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Downhole friction reduction systems having a flexible agitator
- Patent number 12,188,320
- Issue date Jan 7, 2025
- National-Oilwell Varco, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole friction reduction systems having a flexible agitator
- Patent number 11,905,777
- Issue date Feb 20, 2024
- National-Oilwell Varco, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole friction reduction systems
- Patent number 11,867,015
- Issue date Jan 9, 2024
- National-Oilwell Varco, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Grant
Frangible core barrel
- Patent number 9,540,896
- Issue date Jan 10, 2017
- National-Oilwell Varco, L.P.
- Alan Grant Norrie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Adjustable coring assembly and method of using same
- Patent number 9,494,004
- Issue date Nov 15, 2016
- National-Oilwell Varco, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole activation assembly and method of using same
- Patent number 9,435,168
- Issue date Sep 6, 2016
- National-Oilwell DHT, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWNHOLE FRICTION REDUCTION SYSTEMS HAVING A FLEXIBLE AGITATOR
- Publication number 20240183240
- Publication date Jun 6, 2024
- National-Oilwell Varco, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE FRICTION REDUCTION SYSTEMS HAVING A FLEXIBLE AGITATOR
- Publication number 20230399911
- Publication date Dec 14, 2023
- National-Oilwell Varco, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE FRICTION REDUCTION SYSTEMS
- Publication number 20220282588
- Publication date Sep 8, 2022
- National-Oilwell Varco, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Application
ON DEMAND FLOW PULSING SYSTEM
- Publication number 20220275685
- Publication date Sep 1, 2022
- NATIONAL OILWELL DHT, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Application
FRANGIBLE CORE BARREL
- Publication number 20150275604
- Publication date Oct 1, 2015
- National-Oilwell Varco, L.P.
- Alan Grant NORRIE
- E21 - EARTH DRILLING MINING
Information Patent Application
ADJUSTABLE CORING ASSEMBLY AND METHOD OF USING SAME
- Publication number 20150176355
- Publication date Jun 25, 2015
- National-Oilwell Varco, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE ACTIVATION ASSEMBLY AND METHOD OF USING SAME
- Publication number 20140216761
- Publication date Aug 7, 2014
- NATIONAL OILWELL DHT, L.P.
- Khoi Trinh
- E21 - EARTH DRILLING MINING

Person

Patents Grantslast 30 patents

Downhole friction reduction systems having a flexible agitator

Downhole friction reduction systems having a flexible agitator

Downhole friction reduction systems

Frangible core barrel

Adjustable coring assembly and method of using same

Downhole activation assembly and method of using same

Patents Applicationslast 30 patents

DOWNHOLE FRICTION REDUCTION SYSTEMS HAVING A FLEXIBLE AGITATOR

DOWNHOLE FRICTION REDUCTION SYSTEMS HAVING A FLEXIBLE AGITATOR

DOWNHOLE FRICTION REDUCTION SYSTEMS

ON DEMAND FLOW PULSING SYSTEM

FRANGIBLE CORE BARREL

ADJUSTABLE CORING ASSEMBLY AND METHOD OF USING SAME

DOWNHOLE ACTIVATION ASSEMBLY AND METHOD OF USING SAME