LIU; Yuexiang

Patent Applications and Registrations

Patent applications and USPTO patent grants for LIU; Yuexiang.The latest application filed is for "carrier for olefin polymerization catalyst, and preparation method therefor and application thereof".

Company Profile

5.18.15

LIU; Yuexiang - Beijing CN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Carrier For Olefin Polymerization Catalyst, And Preparation Method Therefor And Application Thereof App 20210371552 - LING; Yongtai ; et al.	2021-12-02
Catalyst Component And Catalyst For Olefin Polymerization, And Application Thereof App 20210340165 - ZHAO; Jin ; et al.	2021-11-04
Catalyst pre-contact device for continuous polymerization of olefins and method for catalyst pre-contact Grant 10,988,553 - Xia , et al. April 27, 2	2021-04-27
Systems and methods for user analysis Grant 10,990,500 - Liu , et al. April 27, 2	2021-04-27
Systems And Methods For User Analysis App 20210034493 - LIU; Yuexiang ; et al.	2021-02-04
Catalyst Pre-contact Device For Continuous Polymerization Of Olefins And Method For Catalyst Pre-contact App 20190218314 - XIA; Xianzhi ; et al.	2019-07-18
Spherical magnesium halide adduct, a catalyst component and a catalyst for olefin polymerization prepared therefrom Grant 10,239,969 - Xia , et al.	2019-03-26
Spherical carriers for olefin polymerization catalyst, catalyst components, catalyst, and preparation methods therefor Grant 9,951,157 - Li , et al. April 24, 2	2018-04-24
Catalyst component for olefin polymerization, preparation method thereof, and catalyst comprising same Grant 9,809,663 - Xia , et al. November 7, 2	2017-11-07
Spherical Magnesium Halide Adduct, A Catalyst Component And A Catalyst For Olefin Polymerization Prepared Therefrom App 20170101486 - XIA; Xianzhi ; et al.	2017-04-13
Spherical magnesium halide adduct, a catalyst component and a catalyst for olefin polymerization prepared therefrom Grant 9,499,569 - Xia , et al. November 22, 2	2016-11-22
Catalyst Component For Olefin Polymerization, Preparation Method Thereof, And Catalyst Comprising Same App 20160264694 - Xia; Xianzhi ; et al.	2016-09-15
Spherical Carriers For Olefin Polymerization Catalyst, Catalyst Components, Catalyst, And Preparation Methods Therefor App 20160251457 - Li; Weili ; et al.	2016-09-01
Catalyst component for olefin polymerization and preparation method thereof Grant 9,353,197 - Xia , et al. May 31, 2	2016-05-31
Carrier for olefin polymerization catalyst, preparation method and application thereof Grant 9,321,857 - Li , et al. April 26, 2	2016-04-26
Catalyst component for olefin polymerization and catalyst comprising the same Grant 9,243,086 - Li , et al. January 26, 2	2016-01-26
Magnesium halide adducts, catalyst components and catalysts comprising the same, and preparation processes thereof Grant 9,068,026 - Xia , et al. June 30, 2	2015-06-30
Magnesium Halide Adducts, Catalyst Components And Catalysts Comprising The Same, And Preparation Processes Thereof App 20120302708 - XIA; Xianzhi ; et al.	2012-11-29
Carrier For Olefin Polymerization Catalyst, Preparation Method And Application Thereof App 20120264590 - Li; Weili ; et al.	2012-10-18
Catalyst Component For Olefin Polymerization And Catalyst Comprising The Same App 20120252992 - Li; Weili ; et al.	2012-10-04
Catalyst Component For Olefin Polymerization And Preparation Method Thereof App 20120226004 - Xia; Xianzhi ; et al.	2012-09-06
Spherical Magnesium Halide Adduct, A Catalyst Component And A Catalyst For Olefin Polymerization Prepared Therefrom App 20120184694 - Xia; Xianzhi ; et al.	2012-07-19
Magnesium Halide Complexes, Catalyst Components And Catalysts For Olefin Polymerization Prepared Therefrom App 20100099833 - Xia; Xianzhi ; et al.	2010-04-22
Catalyst component and catalyst for olefin polymerization as well as use thereof Grant 7,332,455 - Wei , et al. February 19, 2	2008-02-19
Catalyst component for ethylene polymerization, the preparation thereof and catalyst comprising the same Grant 7,153,804 - Chen , et al. December 26, 2	2006-12-26
Catalyst component for ethylene polymerization, the preparation thereof and catalyst comprising the same App 20050227858 - Chen, Wei ; et al.	2005-10-13
Catalyst component and catalyst for olefin polymerization as well as use thereof App 20050119427 - Wei, Chen ; et al.	2005-06-02
Compound catalyst system for synthesizing polyethylenes or copolymers of ethylene having bimodal or broad molecular weight distributions, process for preparing the same and use of the same Grant 6,387,839 - Jin , et al. May 14, 2	2002-05-14

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