Jim Hwang

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Reinforced frac tubing head
- Patent number 8,622,121
- Issue date Jan 7, 2014
- Vetco Gray Inc.
- Mahesha Udipi
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SHRINKAGE COMPENSATED SEAL ASSEMBLY AND RELATED METHODS
- Publication number 20140131954
- Publication date May 15, 2014
- Vetco Gray Inc.
- Bashir Mohammad Koleilat
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS AND METHOD FOR BACKSEATING A GATE VALVE
- Publication number 20140000907
- Publication date Jan 2, 2014
- Vetco Gray Inc.
- Alfred Olvera
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
REINFORCED FRAC TUBING HEAD
- Publication number 20120205111
- Publication date Aug 16, 2012
- Vetco Gray Inc.
- Mahesha Udipi
- E21 - EARTH DRILLING MINING