Inventor
CHANG ANDY CHENG
US7 patents
Patents
7 patentsUS10107064B2Oct 23, 2018
Changeable well seal tool
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US9677371B2Jun 13, 2017
Fluid loss well treatment
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US9677372B2Jun 13, 2017
Well system cementing plug
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US9677370B2Jun 13, 2017
Deformable plug and seal well system
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US10711331B2Jul 14, 2020
Polycrystalline diamond compact with gradient interfacial layer
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US9958572B2May 1, 2018
Synthetic test beds for fracturing optimization and methods of manufacture and use thereof
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US10920303B2Feb 16, 2021
Induced material segregation methods of manufacturing a polycrystalline diamond tool
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