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Chee Sing Kelvin LOH
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Singapore, SG
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last 30 patents
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Patent Application
Two-Stage Expandable Liner Hanger
Publication number
20240151123
Publication date
May 9, 2024
Halliburton Energy Services, Inc.
Chee Sing Kelvin Loh
E21 - EARTH DRILLING MINING
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Patent Application
COLLAPSIBLE SHELL PACKER FOR METAL-TO-METAL SEALING
Publication number
20220389787
Publication date
Dec 8, 2022
Halliburton Energy Services, Inc.
Peng Hooi OON
E21 - EARTH DRILLING MINING