Qingshan Ma

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Propylene polymer composition and oriented film prepared thereby
- Patent number 7,611,776
- Issue date Nov 3, 2009
- China Petrochemical & Chemical Corporation
- Luqiang Yu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
MOBILE DR APPLICABLE TO IN-VIVO DETECTION OF MULTI-THORACOLUMBAR VA...
- Publication number 20230210255
- Publication date Jul 6, 2023
- Liaocheng University
- Yandong Zhan
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Propylene polymer composition and oriented film prepared thereby
- Publication number 20060182987
- Publication date Aug 17, 2006
- BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL C...
- Luqiang Yu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Composite carrier of catalysts for propylene polymerization, a cata...
- Publication number 20060154806
- Publication date Jul 13, 2006
- CHINA PETROLEUM & CHEMICAL CORPORATION
- Wei Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Composite carrier of catalysts for propylene polymerization, a cata...
- Publication number 20040229748
- Publication date Nov 18, 2004
- CHINA PETROLEUM & CHEMICAL CORPORATION
- Wei Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...