Sinopec Oilfield Service Corporation

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Perforating device for horizontal wells
- Patent number 11,359,466
- Issue date Jun 14, 2022
- Sinopec Oilfield Service Corporation
- Guosheng Yang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Comb polymer, method of preparing the same, and use thereof
- Patent number 9,938,445
- Issue date Apr 10, 2018
- Sinopec Oilfield Service Corporation
- Gongrang Li
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Coated Rubber Particle, Its Preparation and Application Thereof
- Publication number 20230242804
- Publication date Aug 3, 2023
- China Petroleum and Chemical Corporation
- Gongrang LI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Cyclic Thioether Compound, Vegetable Oil Composition Containing the...
- Publication number 20230141112
- Publication date May 11, 2023
- China Petroleum and Chemical Corporation
- Gongrang LI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
PERFORATING DEVICE FOR HORIZONTAL WELLS
- Publication number 20200408074
- Publication date Dec 31, 2020
- Sinopec Oilfield Service Corporation
- Guosheng YANG
- E21 - EARTH DRILLING MINING
Information Patent Application
Comb polymer, method of preparing the same, and use thereof
- Publication number 20150203736
- Publication date Jul 23, 2015
- Sinopec Oilfield Service Corporation
- Gongrang LI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Trademarklast 30 trademarks