Williamson; David T.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Williamson; David T..The latest application filed is for "block copolymers having semi-crystalline blocks and compositions and articles made therefrom".

Company Profile

1.17.23

Williamson; David T. - Landenberg PA
Williamson; David T. - Chesterfield VA US
Williamson; David T. - Katy TX
Williamson; David T. - Hockessin DE
Williamson; David T. - Christianburg VA

*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
Block copolymers having semi-crystalline blocks and compositions and articles made therefrom Grant 10,633,465 - Flood , et al.	2020-04-28
Block Copolymers Having Semi-crystalline Blocks And Compositions And Articles Made Therefrom App 20170275392 - Flood; John E. ; et al.	2017-09-28
Compositions of polyesters and fibrous clays Grant 9,040,615 - Williamson , et al. May 26, 2	2015-05-26
Preparation of polyamide block copolymers Grant 8,691,894 - Williamson , et al. April 8, 2	2014-04-08
Decarboxylating block copolymers Grant 8,362,106 - Dogra , et al. January 29, 2	2013-01-29
Compositions Of Polyesters And Fibrous Clays App 20120292812 - Williamson; David T. ; et al.	2012-11-22
Nanocomposite compositions of polyamides and sepiolite-type clays Grant 8,198,355 - Williamson June 12, 2	2012-06-12
Preparation Of Polyamide Block Copolymers App 20120062228 - Williamson; David T. ; et al.	2012-03-15
Preparation of polyamide block copolymers Grant 8,063,169 - Williamson , et al. November 22, 2	2011-11-22
Nanocomposite compositions of polyamides and Sepiolite-type clays App 20100324195 - Williamson; David T.	2010-12-23
Decarboxylating Block Copolymers App 20100273931 - Dogra; Kalindi ; et al.	2010-10-28
Polymerization of cyclic amides using N-heterocyclic carbene and metal amide and metal alkoxide catalysts Grant 7,635,747 - Tam , et al. December 22, 2	2009-12-22
Polymerization of macrocyclic polyester oligomers using N-heterocyclic carbene catalysts Grant 7,622,543 - Tam , et al. November 24, 2	2009-11-24
Facilatated Dispersion Of Nanofillers For The Preparation Of Nanocomposites App 20090192254 - Williamson; David T. ; et al.	2009-07-30
Polyester Clay Nanocomposites For Barrier Applications App 20090186179 - WILLIAMSON; DAVID T. ; et al.	2009-07-23
Polymerization of macrocyclic polyester oligomers at elevated temperature using rare earth element catalysts Grant 7,557,157 - Williamson July 7, 2	2009-07-07
Polymerization of macrocyclic polyester oligomers using metal amide and metal alkoxide catalysts Grant 7,550,531 - Tam , et al. June 23, 2	2009-06-23
Ring opening polymerization of cyclic amides using N-heterocyclic carbene catalysts Grant 7,514,499 - Tam , et al. April 7, 2	2009-04-07
Rapidly crystallizing polycarbonate composition Grant 7,504,472 - Williamson March 17, 2	2009-03-17
Polymerization of macrocyclic polyester oligomers using N-heterocyclic carbene and metal amide or metal alkoxide catalyst Grant 7,488,772 - Tam , et al. February 10, 2	2009-02-10
Process For The Production Of Polyester Nanocomposites App 20080315453 - Molitor; Michael Joseph ; et al.	2008-12-25
Facilatated Dispersion of Nanofillers for the Preparation of Nanocomposites App 20080261062 - Williamson; David T. ; et al.	2008-10-23
Preparation Of Polamide Block Copolymers App 20070293629 - WILLIAMSON; DAVID T. ; et al.	2007-12-20
Polymerization of macrocyclic polyester oligomers using N-heterocyclic carbene catalysts App 20070252311 - Tam; Wilson ; et al.	2007-11-01
Polyester nanocomposite filaments and fiber App 20070173585 - Sevenich; Gregory James ; et al.	2007-07-26
Rapidly crystallizing polycarbonate composition App 20060276580 - Williamson; David T.	2006-12-07
Compositions of polyesters and sepiolite-type clays App 20060205856 - Williamson; David T.	2006-09-14
Toughened polyester compositions App 20060157350 - Williamson; David T. ; et al.	2006-07-20
Polyester clay nanocomposites for barrier applications App 20060141183 - Williamson; David T. ; et al.	2006-06-29
Manufacture of macrocyclic polyester oligomers App 20060128935 - Tam; Wilson ; et al.	2006-06-15
Polymerization of macrocyclic polyester oligomers at elevated temperature using rare earth element catalysts App 20060100364 - Williamson; David T.	2006-05-11
Polymerization of cyclic amides using N-heterocyclic carbene and metal amide and metal alkoxide catalysts App 20060096699 - Tam; Wilson ; et al.	2006-05-11
Polymerization of macrocyclic polyester oligomers using N-heterocyclic carbene and metal amide or metal alkoxide catalyst App 20060100362 - Tam; Wilson ; et al.	2006-05-11
Polymerization of macrocyclic polyester oligomers using metal amide and metal alkoxide catalysts App 20060100363 - Tam; Wilson ; et al.	2006-05-11
Ring opening polymerization of cyclic amides using N-heterocyclic carbene catalysts App 20060100365 - Tam; Wilson ; et al.	2006-05-11
Ring opening polymerization of cyclic amides using metal amide and metal alkoxide catalysts App 20060100414 - Tam; Wilson ; et al.	2006-05-11
Block copolymer Grant 6,699,941 - Handlin , et al. March 2, 2	2004-03-02

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