Zhifei Li

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Olefin polymerization catalyst and preparation method and use thereof
- Patent number 8,716,417
- Issue date May 6, 2014
- PetroChina Company Limited
- Jianjun Yi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst for polymerization of olefins comprising thienyl-substitut...
- Patent number 8,541,332
- Issue date Sep 24, 2013
- PetroChina Company Limited
- Zhifei Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst for homopolymerizing and copolymerizing propylene and its...
- Patent number 8,470,941
- Issue date Jun 25, 2013
- PetroChina Company Limited
- Jianjun Yi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Continuous mass production of carbon nanotubes in a nano-agglomerat...
- Patent number 7,563,427
- Issue date Jul 21, 2009
- Tsinghua University
- Fei Wei
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
CATALYST FOR POLYMERIZATION OF OLEFINS COMPRISING THIENYL-SUBSTITUT...
- Publication number 20130131292
- Publication date May 23, 2013
- Petrochina Company Limited
- Zhifei Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
OLEFIN POLYMERIZATION CATALYST AND PREPARATION METHOD AND USE THEREOF
- Publication number 20130072647
- Publication date Mar 21, 2013
- Petrochina Company Limited
- Jianjun Yi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CATALYST FOR HOMOPOLYMERIZING AND COPOLYMERIZING PROPYLENE AND ITS...
- Publication number 20110207900
- Publication date Aug 25, 2011
- Jianjun Yi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CONTINUOUS MASS PRODUCTION OF CARBON NANOTUBES IN A NANO-AGGLOMERAT...
- Publication number 20090286675
- Publication date Nov 19, 2009
- TSINGHUA UNIVERSITY
- Fei Wei
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Continuous mass production of carbon nanotubes in a nano-agglomerat...
- Publication number 20040151654
- Publication date Aug 5, 2004
- Fei Wei
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL