Fangju Ye

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Liner hanger top packer
- Patent number 9,745,809
- Issue date Aug 29, 2017
- Starse Energy and Technology (Group) Co., Ltd.
- Huian Yi
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
LINER HANGER TOP PACKER
- Publication number 20150176354
- Publication date Jun 25, 2015
- STARSE ENERGY AND TECHNOLOGY (GROUP) CO., LTD.
- Huian Yi
- E21 - EARTH DRILLING MINING