Tak W. Leung

Person

Houston, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Production of high melt flow propylene-based polymer and product fr...
- Patent number 11,993,672
- Issue date May 28, 2024
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for production of high melt flow propylene-based polymer an...
- Patent number 11,254,756
- Issue date Feb 22, 2022
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for production of high melt flow propylene-based polymer an...
- Patent number 10,358,505
- Issue date Jul 23, 2019
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with substituted 1,2-phenylene aromatic die...
- Patent number 9,534,063
- Issue date Jan 3, 2017
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with substituted amide ester internal elect...
- Patent number 9,441,058
- Issue date Sep 13, 2016
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with substituted 1,2-phenylene aromatic die...
- Patent number 9,434,799
- Issue date Sep 6, 2016
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with alkoxyalkyl 2-propenoate internal elec...
- Patent number 9,382,342
- Issue date Jul 5, 2016
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with alkoxypropyl ester internal electron d...
- Patent number 9,382,343
- Issue date Jul 5, 2016
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing procatalyst composition with alkoxyalkyl este...
- Patent number 9,315,592
- Issue date Apr 19, 2016
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Production of substituted phenylene dibenzoate internal electron do...
- Patent number 9,133,286
- Issue date Sep 15, 2015
- W. R. Grace & Co.-Conn.
- Michael F. Gullo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Procatalyst composition with substituted 1,2-phenylene aromatic die...
- Patent number 9,045,570
- Issue date Jun 2, 2015
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst composition with halo-malonate internal electron donor and...
- Patent number 8,697,827
- Issue date Apr 15, 2014
- W. R. Grace & Co.-Conn.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Three and four atom bridged dicarbonate compounds as internal donor...
- Patent number 8,633,126
- Issue date Jan 21, 2014
- Dow Global Technologies LLC
- Joseph N. Coalter
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production of substituted phenylene aromatic diesters and compositions
- Patent number 8,604,235
- Issue date Dec 10, 2013
- Dow Global Technologies LLC
- Linfeng Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Procatalyst composition with substituted amide ester internal elect...
- Patent number 8,604,144
- Issue date Dec 10, 2013
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Amide ester internal electron donor and process
- Patent number 8,551,903
- Issue date Oct 8, 2013
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with alkoxyalkyl 2-propenoate internal elec...
- Patent number 8,536,290
- Issue date Sep 17, 2013
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with substituted 1,2-phenylene aromatic die...
- Patent number 8,536,372
- Issue date Sep 17, 2013
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Production of substituted phenylene aromatic diesters
- Patent number 8,507,717
- Issue date Aug 13, 2013
- Dow Global Technologies LLC
- Tak W. Leung
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Halogenated amide ester and internal electron donor with same
- Patent number 8,466,081
- Issue date Jun 18, 2013
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst composition with halo-malonate internal electron donor and...
- Patent number 8,383,540
- Issue date Feb 26, 2013
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoformed article with high stiffness and good optics
- Patent number 8,378,045
- Issue date Feb 19, 2013
- Dow Global Technologies LLC
- John Kaarto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with adamantane and method
- Patent number 8,288,304
- Issue date Oct 16, 2012
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Procatalyst composition with substitute 1,2-phenylene aromatic dies...
- Patent number 8,288,585
- Issue date Oct 16, 2012
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Two atom bridged dicarbonate compounds as internal donors in cataly...
- Patent number 8,263,520
- Issue date Sep 11, 2012
- Dow Global Technologies LLC
- Joseph N. Coalter, III
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Procatalyst composition with silyl glutarate and method
- Patent number 8,247,341
- Issue date Aug 21, 2012
- Dow Global Technologies LLC
- Kelly A. Gonzalez
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Procatalyst composition including silyl ester internal donor and me...
- Patent number 8,088,872
- Issue date Jan 3, 2012
- Dow Global Technologies LLC
- Linfeng Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Metal-ligand complex catalyzed processes
- Patent number 5,874,640
- Issue date Feb 23, 1999
- Union Carbide Chemicals & Plastics Technology Corporation
- David Robert Bryant
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Metal-ligand complex catalyzed processes
- Patent number 5,741,942
- Issue date Apr 21, 1998
- Union Carbide Chemicals & Plastics Technology Corporation
- David Robert Bryant
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroformylation processes employing indicator ligands
- Patent number 5,741,943
- Issue date Apr 21, 1998
- Union Carbide Chemicals & Plastics Technology Corporation
- David Robert Bryant
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PRODUCTION OF HIGH MELT FLOW PROPYLENE-BASED POLYMER AND PRODUCT FR...
- Publication number 20220177611
- Publication date Jun 9, 2022
- W.R. GRACE & CO.-CONN.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process For Production of High Melt Flow Propylene-Based Polymer an...
- Publication number 20190338054
- Publication date Nov 7, 2019
- W.R. GRACE & CO.-CONN.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition With Substituted 1,2-Phenylene Aromatic Die...
- Publication number 20160280808
- Publication date Sep 29, 2016
- W.R. GRACE & CO.-CONN.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PRODUCTION OF SUBSTITUTED PHENYLENE DIBENZOATE INTERNAL ELECTRON DO...
- Publication number 20150344597
- Publication date Dec 3, 2015
- W.R. GRACE & CO.-CONN.
- Michael F. Gullo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCATALYST COMPOSITION WITH SUBSTITUTED 1,2-PHENYLENE AROMATIC DIE...
- Publication number 20150299346
- Publication date Oct 22, 2015
- W.R. GRACE & CO.-CONN.
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Substituted Amide Ester Internal Elect...
- Publication number 20140163184
- Publication date Jun 12, 2014
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Alkoxyalkyl 2-Propenoate Internal Elec...
- Publication number 20140046009
- Publication date Feb 13, 2014
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Substituted 1,2-Phenylene Aromatic Die...
- Publication number 20140011670
- Publication date Jan 9, 2014
- DOW GLOBAL TECHNOLOGIES LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Production of Substituted Phenylene Aromatic Diesters
- Publication number 20140012035
- Publication date Jan 9, 2014
- Linfeng Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Procatalyst Composition with Alkoxypropyl Ester Internal Electron D...
- Publication number 20130289228
- Publication date Oct 31, 2013
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for Production of High Melt Flow Propylene-Based Polymer an...
- Publication number 20130261273
- Publication date Oct 3, 2013
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
TWO ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALY...
- Publication number 20130245306
- Publication date Sep 19, 2013
- DOW GLOBAL TECHNOLOGIES LLC
- Joseph N. Coalter
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for Producing Procatalyst Composition with Alkoxyalkyl Este...
- Publication number 20130225398
- Publication date Aug 29, 2013
- DOW GLOBAL TECHNOLOGIES LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Catalyst Composition with Halo-Malonate Internal Electron Donor and...
- Publication number 20130150234
- Publication date Jun 13, 2013
- DOW GLOBAL TECHNOLOGIES LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Production of Substituted Phenylene Dibenzoate Internal Electron Do...
- Publication number 20130053525
- Publication date Feb 28, 2013
- Michael F. Gullo
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Procatalyst Composition with Substituted 1,2-Phenylene Aromatic Die...
- Publication number 20130035227
- Publication date Feb 7, 2013
- DOW GLOBAL TECHNOLOGIES LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Substituted Amide Ester Internal Elect...
- Publication number 20120322962
- Publication date Dec 20, 2012
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Halogenated Amide Ester and Internal Electron Donor with Same
- Publication number 20120322964
- Publication date Dec 20, 2012
- Dow Global Technologies LLC
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Amide Ester Internal Electron Donor and Process
- Publication number 20120316299
- Publication date Dec 13, 2012
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Alkoxypropyl Ester Internal Electron D...
- Publication number 20120157645
- Publication date Jun 21, 2012
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for Producing Procatalyst Composition with Alkoxyalkyl Este...
- Publication number 20120157295
- Publication date Jun 21, 2012
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Alkoxyalkyl 2-Propenoate Internal Elec...
- Publication number 20120157643
- Publication date Jun 21, 2012
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Catalyst Composition with Halo-Malonate Internal Electron Donor and...
- Publication number 20120157296
- Publication date Jun 21, 2012
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
TWO ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALY...
- Publication number 20110130530
- Publication date Jun 2, 2011
- Dow Global Technologies Inc.
- Joseph N. Coalter, III
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
THREE AND FOUR ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONOR...
- Publication number 20110130529
- Publication date Jun 2, 2011
- Dow Global Technologies Inc.
- Joseph N. Coalter, III
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Thermoformed Article with High Stiffness and Good Optics
- Publication number 20100301059
- Publication date Dec 2, 2010
- John Kaarto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Adamantane and Method
- Publication number 20100273966
- Publication date Oct 28, 2010
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Silyl Glutarate and Method
- Publication number 20100267911
- Publication date Oct 21, 2010
- Dow Global Technologies Inc.
- Kelly Gonzalez
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Procatalyst Composition with Substitute 1,2-Phenylene Aromatic Dies...
- Publication number 20100222530
- Publication date Sep 2, 2010
- Linfeng Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Production of Substituted Phenylene Aromatic Diesters and Compositions
- Publication number 20100204506
- Publication date Aug 12, 2010
- Linfeng Chen
- C07 - ORGANIC CHEMISTRY

Tak W. Leung

Person

Patents Grantslast 30 patents

Production of high melt flow propylene-based polymer and product fr...

Process for production of high melt flow propylene-based polymer an...

Process for production of high melt flow propylene-based polymer an...

Procatalyst composition with substituted 1,2-phenylene aromatic die...

Procatalyst composition with substituted amide ester internal elect...

Procatalyst composition with substituted 1,2-phenylene aromatic die...

Procatalyst composition with alkoxyalkyl 2-propenoate internal elec...

Procatalyst composition with alkoxypropyl ester internal electron d...

Process for producing procatalyst composition with alkoxyalkyl este...

Production of substituted phenylene dibenzoate internal electron do...

Procatalyst composition with substituted 1,2-phenylene aromatic die...

Catalyst composition with halo-malonate internal electron donor and...

Three and four atom bridged dicarbonate compounds as internal donor...

Production of substituted phenylene aromatic diesters and compositions

Procatalyst composition with substituted amide ester internal elect...

Amide ester internal electron donor and process

Procatalyst composition with alkoxyalkyl 2-propenoate internal elec...

Procatalyst composition with substituted 1,2-phenylene aromatic die...

Production of substituted phenylene aromatic diesters

Halogenated amide ester and internal electron donor with same

Catalyst composition with halo-malonate internal electron donor and...

Thermoformed article with high stiffness and good optics

Procatalyst composition with adamantane and method

Procatalyst composition with substitute 1,2-phenylene aromatic dies...

Two atom bridged dicarbonate compounds as internal donors in cataly...

Procatalyst composition with silyl glutarate and method

Procatalyst composition including silyl ester internal donor and me...

Metal-ligand complex catalyzed processes

Metal-ligand complex catalyzed processes

Hydroformylation processes employing indicator ligands

Patents Applicationslast 30 patents

PRODUCTION OF HIGH MELT FLOW PROPYLENE-BASED POLYMER AND PRODUCT FR...

Process For Production of High Melt Flow Propylene-Based Polymer an...

Procatalyst Composition With Substituted 1,2-Phenylene Aromatic Die...

PRODUCTION OF SUBSTITUTED PHENYLENE DIBENZOATE INTERNAL ELECTRON DO...

PROCATALYST COMPOSITION WITH SUBSTITUTED 1,2-PHENYLENE AROMATIC DIE...

Procatalyst Composition with Substituted Amide Ester Internal Elect...

Procatalyst Composition with Alkoxyalkyl 2-Propenoate Internal Elec...

Procatalyst Composition with Substituted 1,2-Phenylene Aromatic Die...

Production of Substituted Phenylene Aromatic Diesters

Procatalyst Composition with Alkoxypropyl Ester Internal Electron D...

Process for Production of High Melt Flow Propylene-Based Polymer an...

TWO ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALY...

Process for Producing Procatalyst Composition with Alkoxyalkyl Este...

Catalyst Composition with Halo-Malonate Internal Electron Donor and...

Production of Substituted Phenylene Dibenzoate Internal Electron Do...

Procatalyst Composition with Substituted 1,2-Phenylene Aromatic Die...

Procatalyst Composition with Substituted Amide Ester Internal Elect...

Halogenated Amide Ester and Internal Electron Donor with Same

Amide Ester Internal Electron Donor and Process

Procatalyst Composition with Alkoxypropyl Ester Internal Electron D...

Process for Producing Procatalyst Composition with Alkoxyalkyl Este...

Procatalyst Composition with Alkoxyalkyl 2-Propenoate Internal Elec...

Catalyst Composition with Halo-Malonate Internal Electron Donor and...

TWO ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALY...

THREE AND FOUR ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONOR...

Thermoformed Article with High Stiffness and Good Optics

Procatalyst Composition with Adamantane and Method

Procatalyst Composition with Silyl Glutarate and Method

Procatalyst Composition with Substitute 1,2-Phenylene Aromatic Dies...

Production of Substituted Phenylene Aromatic Diesters and Compositions