Lifeng Liu

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Macromolecule-based conductive composite material and PTC element
- Patent number 9,534,102
- Issue date Jan 3, 2017
- Shanghai Changyuan Wayon Circuit Protection Co., Ltd.
- Quanquan Yang
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
STEROID COMPOUND, AND PHARMACEUTICAL COMPOSITION THEREOF AND USE TH...
- Publication number 20240307415
- Publication date Sep 19, 2024
- JIANGSU SIMCERE PHARMACEUTICAL CO., LTD.
- Lifeng LIU
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
SUBSTITUTED PYRIMIDINE OR PYRIDINE AMINE DERIVATIVE, COMPOSITION TH...
- Publication number 20230145793
- Publication date May 11, 2023
- SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD.
- Lifeng LIU
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Macromolecule-based conductive composite material and PTC element
- Publication number 20140327513
- Publication date Nov 6, 2014
- Quanquan Yang
- H01 - BASIC ELECTRIC ELEMENTS