Yonggang JI

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Xicheng District, Beijing, CN

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Patents Applicationslast 30 patents

Information Patent Application
METALLOCENE COMPOUND, AND PREPARATION METHOD AND APPLICATION THEREOF
- Publication number 20240336645
- Publication date Oct 10, 2024
- Petrochina Company Limited
- Yulong WANG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
CATALYST FOR COPOLYMERIZATION OF ETHYLENE AND METHYL METHACRYLATE,...
- Publication number 20240270879
- Publication date Aug 15, 2024
- Petrochina Company Limited
- Qian CHEN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
SEPARATION AND RECOVERY METHOD FOR BORON TRIFLUORIDE AND COMPLEX TH...
- Publication number 20240002243
- Publication date Jan 4, 2024
- PETROCHINA COMPANY LIMITED
- Tong LIU
- C01 - INORGANIC CHEMISTRY