McCullough; Laughlin G.

Patent Applications and Registrations

Patent applications and USPTO patent grants for McCullough; Laughlin G..The latest application filed is for "polyethylene films".

Company Profile

21.42.48

McCullough; Laughlin G. - League City TX
McCullough; Laughlin G. - Longview TX
McCullough; Laughlin G. - Fairport NY

*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
Metallocenes with Si--Si bridges Grant 11,369,949 - Kuppuswamy , et al. June 28, 2	2022-06-28
Metallocenes with two -Si-Si- bridges Grant 11,306,162 - Kuppuswamy , et al. April 19, 2	2022-04-19
Polyethylene compositions and films prepared therefrom Grant 11,274,196 - Li , et al. March 15, 2	2022-03-15
Polyethylene Films App 20220025135 - LUE; Ching-Tai ; et al.	2022-01-27
Catalyst systems including two hafnocene catalyst compounds Grant 11,198,747 - Holtcamp , et al. December 14, 2	2021-12-14
Polyethylene Compositions and Films Prepared Therefrom App 20210238321 - Silva; Adrianna S. ; et al.	2021-08-05
Catalyst systems and polymerization processes for using the same Grant 10,926,250 - Holtcamp , et al. February 23, 2	2021-02-23
Mixed catalysts with unbridged hafnocenes with -CH2-SiMe3 moieties Grant 10,913,808 - Holtcamp , et al. February 9, 2	2021-02-09
Catalyst Systems and Polymerization Processes for Using the Same App 20210023540 - Holtcamp; Matthew W. ; et al.	2021-01-28
Method To Prepare Ethylene Copolymers App 20210024670 - Rix; Francis C. ; et al.	2021-01-28
Sterically hindered metallocenes, synthesis and use Grant 10,882,932 - Crowther , et al. January 5, 2	2021-01-05
Catalyst systems and polymerization processes for using the same Grant 10,822,434 - Holtcamp , et al. November 3, 2	2020-11-03
Metallocenes With Two -si-si- Bridges App 20200332031 - Kuppuswamy; Subramaniam ; et al.	2020-10-22
Polyethylene compositions and articles made therefrom Grant 10,808,053 - Li , et al. October 20, 2	2020-10-20
Supported catalyst systems and processes for use thereof Grant 10,723,819 - Holtcamp , et al.	2020-07-28
Polyethylene Compositions and Films Prepared Therefrom App 20200231790 - Li; Dongming ; et al.	2020-07-23
Catalyst composition comprising fluorided support and processes for use thereof Grant 10,717,790 - Ye , et al.	2020-07-21
Group 4 catalyst compounds and process for use thereof Grant 10,696,758 - Kuppuswamy , et al. June 30, 2	2020-06-30
Catalyst composition comprising fluorided support and processes for use thereof Grant 10,640,583 - Ye , et al.	2020-05-05
Mixed Catalyst Systems and Methods of Using the Same App 20200048382 - Holtcamp; Matthew W. ; et al.	2020-02-13
Catalyst Systems Including Two Hafnocene Catalyst Compounds App 20190367649 - Holtcamp; Matthew W. ; et al.	2019-12-05
Metallocenes With Si-Si Bridges App 20190366315 - Kuppuswamy; Subramaniam ; et al.	2019-12-05
Hafnocene catalyst compounds and process for use thereof Grant 10,479,846 - McCullough Nov	2019-11-19
Method To Prepare Ethylene Copolymers App 20190322780 - Rix; Francis C. ; et al.	2019-10-24
Supported catalyst systems and methods of using same Grant 10,414,887 - Ye , et al. Sept	2019-09-17
Benzindenyl Catalyst Systems and Processes for Use Thereof App 20190248929 - McCullough; Laughlin G.	2019-08-15
Polymerization process using bridged metallocene compounds supported on organoaluminum treated layered silicate supports Grant 10,351,647 - Holtcamp , et al. July 16, 2	2019-07-16
Catalyst Systems and Polymerization Processes for Using the Same App 20190168203 - Holtcamp; Matthew W. ; et al.	2019-06-06
Polyethylene Compositions and Articles Made Therefrom App 20190119417 - Li; Dongming ; et al.	2019-04-25
Catalyst Systems and Polymerization Processes for Using the Same App 20190119413 - Holtcamp; Matthew W. ; et al.	2019-04-25
Mixed Catalysts with Unbridged Hafnocenes with -CH2-SiMe3 Moieties App 20190040167 - Holtcamp; Matthew W. ; et al.	2019-02-07
Producing polyolefin products Grant 10,189,923 - Lue , et al. Ja	2019-01-29
Polymerization Process Using Bridged Metallocene Compounds Supported on Organoaluminum Treated Layered Silicate Supports App 20180298127 - Holtcamp; Matthew W. ; et al.	2018-10-18
Catalysts for the formation of multimodal polymers Grant 10,087,268 - Alliger , et al. October 2, 2	2018-10-02
Group 4 Catalyst Compounds and Process for Use Thereof App 20180237559 - Kuppuswamy; Subramaniam ; et al.	2018-08-23
Supported Catalyst Systems and Processes for Use Thereof App 20180237554 - Holtcamp; Matthew W. ; et al.	2018-08-23
Hafnocene Catalyst Compounds and Process for Use Thereof App 20180237558 - McCullough; Laughlin G.	2018-08-23
Catalyst Composition Comprising Fluorided Support and Processes for Use Thereof App 20180171040 - YE; Xuan ; et al.	2018-06-21
Sterically Hindered Metallocenes, Synthesis and Use App 20180094088 - Crowther; Donna J. ; et al.	2018-04-05
Hydrogenation of annulated cyclopentadienyl metal complexes and metallocene catalysts comprising such Grant 9,932,423 - McCullough April 3, 2	2018-04-03
Catalyst Composition Comprising Fluorided Support and Processes for Use Thereof App 20180072823 - Ye; Xuan ; et al.	2018-03-15
Producing Polyolefin Products App 20180066088 - Lue; Ching-Tai ; et al.	2018-03-08
Producing polyolefin products Grant 9,809,667 - Lue , et al. November 7, 2	2017-11-07
Catalysts for the Formation of Multimodal Polymers App 20170114168 - Alliger; Glen E. ; et al.	2017-04-27
Supported Catalyst Systems and Methods of Using Same App 20170096506 - Ye; Xuan ; et al.	2017-04-06
Hydrogenation Of Annulated Cyclopentadienyl Metal Complexesand Metallocene Catalysts Comprising Such App 20170088643 - McCullough; Laughlin G.	2017-03-30
Method To Prepare Ethylene Copolymers App 20160362510 - Rix; Francis C. ; et al.	2016-12-15
Producing Polyolefin Products App 20160347889 - Lue; Ching-Tai ; et al.	2016-12-01
Reverse staged impact copolymers Grant 9,376,559 - Holtcamp , et al. June 28, 2	2016-06-28
Asymmetric polypropylene catalysts Grant 9,266,910 - McCullough February 23, 2	2016-02-23
Bridged metallocene compounds, catalyst systems and processes for polymerization therewith Grant 9,266,977 - McCullough February 23, 2	2016-02-23
Branched polyethylene with improved processing and high tear films made therefrom Grant 9,068,033 - Fiscus , et al. June 30, 2	2015-06-30
Reverse Staged Impact Copolymers App 20150147552 - Holtcamp; Matthew W. ; et al.	2015-05-28
Asymmetric Polypropylene Catalysts App 20150119539 - McCullough; Laughlin G.	2015-04-30
Bridged Metallocene Compounds, Catalyst Systems and Processes for Polymerization Therewith App 20140179884 - McCullough; Laughlin G.	2014-06-26
Branched Polyethylene With Improved Processing and High Tear Films Made Therefrom App 20140179872 - Fiscus; David M. ; et al.	2014-06-26
Phosphine ligand-metal compositions, complexes, and catalysts for ethylene trimerizations Grant 8,404,915 - McCullough , et al. March 26, 2	2013-03-26
Class of olefin metathesis catalysts, methods of preparation, and processes for the use thereof Grant 8,227,371 - Holtcamp , et al. July 24, 2	2012-07-24
Olefin oligomerization reaction processes exhibiting reduced fouling Grant 8,227,653 - Weber , et al. July 24, 2	2012-07-24
Novel Class Of Olefin Metathesis Catalysts, Methods Of Preparation, And Processes For The Use Thereof App 20120077945 - Holtcamp; Matthew W. ; et al.	2012-03-29
Olefin Oligomerization Reaction Processes Exhibiting Reduced Fouling App 20120016097 - Weber; Michael W. ; et al.	2012-01-19
Phosphine Ligand-Metal Compositions, Complexes, and Catalysts For Ethylene Trimerizations App 20080058486 - McCullough; Laughlin G. ; et al.	2008-03-06
High tear films from hafnocene catalyzed polyethylenes Grant 7,179,876 - Szul , et al. February 20, 2	2007-02-20
High tear films from hafnocene catalyzed polyethylenes Grant 7,172,816 - Szul , et al. February 6, 2	2007-02-06
Polymerization process using a metallocene catalyst system Grant 7,132,382 - McCullough , et al. November 7, 2	2006-11-07
Methods of forming a supported activated catalyst composition Grant 7,060,766 - McCullough , et al. June 13, 2	2006-06-13
Low comonomer incorporating metallocene catalyst compounds Grant 7,060,765 - Vaughan , et al. June 13, 2	2006-06-13
High tear films from hafnocene catalyzed polyethylenes App 20050215716 - Szul, John F. ; et al.	2005-09-29
High tear films from hafnocene catalyzed polyethylenes Grant 6,936,675 - Szul , et al. August 30, 2	2005-08-30
High tear films from hafnocene catalyzed polyethylenes App 20050171283 - Szul, John F. ; et al.	2005-08-04
Methods of forming a supported activated catalyst composition App 20050165183 - McCullough, Laughlin G. ; et al.	2005-07-28
Polymerization process using a metallocene catalyst system App 20050164875 - McCullough, Laughlin G. ; et al.	2005-07-28
Methods of forming a supported activated catalyst composition Grant 6,900,154 - McCullough , et al. May 31, 2	2005-05-31
Polymerization process using a metallocene catalyst system Grant 6,894,131 - McCullough , et al. May 17, 2	2005-05-17
Processes for producing fluorided catalysts from nitrogenous metallocenes Grant 6,890,876 - McCullough , et al. May 10, 2	2005-05-10
Process for producing fluorinated catalysts Grant 6,884,748 - McCullough April 26, 2	2005-04-26
High tear films from hafnocene catalyzed polyethylenes App 20050058847 - Szul, John F. ; et al.	2005-03-17
Bimodal polyolefin production process and films therefrom App 20050054799 - Kuo, Chi-I ; et al.	2005-03-10
Bimodal polyolefin production process and films therefrom App 20050038210 - Kuo, Chi-I ; et al.	2005-02-17
Methods of forming a supported activated catalyst composition App 20040102312 - McCullough, Laughlin G. ; et al.	2004-05-27
Processes for producing fluorided catalysts from nitrogenous metallocenes App 20040102590 - McCullough, Laughlin G. ; et al.	2004-05-27
Low comonomer incorporating metallocene catalyst compounds App 20040077785 - Vaughan, George Alan ; et al.	2004-04-22
Polymerization process using a metallocene catalyst system App 20030236364 - McCullough, Laughlin G. ; et al.	2003-12-25
Linked metallocene complexes, catalyst systems, and olefin polymerization processes using same Grant 6,642,400 - Holtcamp , et al. November 4, 2	2003-11-04
Polymerization process using an improved bulky ligand metallocene-type catalyst system Grant 6,632,901 - McCullough October 14, 2	2003-10-14
Linked metallocene complexes, catalyst systems, and olefin polymerization processes using same App 20030069373 - Holtcamp, Matthew W. ; et al.	2003-04-10
Polymerization Process Using An Improved Bulky Ligand Metallocene-type Catalyst System App 20020032287 - MCCULLOUGH, LAUGHLIN G.	2002-03-14
Polyether polymers derived from 3,4-epoxy-1-butene Grant 5,608,034 - Falling , et al. March 4, 1	1997-03-04
Isomerization of epoxyalkenes to 2,5-dihydrofurans Grant 5,082,956 - Monnier , et al. January 21, 1	1992-01-21