Lye Heng Chang

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Singapore, SG

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Patents Grantslast 30 patents

Information Patent Grant
Electric submersible pump components
- Patent number 10,451,079
- Issue date Oct 22, 2019
- Schlumberger Technology Corporation
- Lye Heng Chang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Centrifugal pump stage with increased compressive load capacity
- Patent number 9,683,571
- Issue date Jun 20, 2017
- Schlumberger Technology Corporation
- Tony R. Morrison
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC SUBMERSIBLE PUMP COMPONENTS
- Publication number 20170167498
- Publication date Jun 15, 2017
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Lye Heng Chang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Centrifugal Pump Stage with Increased Compressive Load Capacity
- Publication number 20140294575
- Publication date Oct 2, 2014
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Tony R. Morrison
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...