Leffew; Kenneth Wayne

Patent Applications and Registrations

Patent applications and USPTO patent grants for Leffew; Kenneth Wayne.The latest application filed is for "fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer".

Company Profile

0.13.7

Leffew; Kenneth Wayne - Kennett Square PA US

*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
Fluoropolymer particles having a nucleus of fluorinated ionomer Grant 8,835,547 - Leffew , et al. September 16, 2	2014-09-16
Fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer Grant 8,436,053 - Leffew , et al. May 7, 2	2013-05-07
Fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer produced in situ Grant 8,436,054 - Aten , et al. May 7, 2	2013-05-07
Fluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer Grant 8,153,738 - Leffew , et al. April 10, 2	2012-04-10
Fluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated lonomer produced in situ Grant 8,058,376 - Aten , et al. November 15, 2	2011-11-15
Fluorinated Ionomer Produced by Aqueous Polymerization Using Dispersed Particulate of Fluorinated Ionomer App 20110152387 - Leffew; Kenneth Wayne ; et al.	2011-06-23
Fluoropolymer Particles Having a Nucleus of Fluorinated Ionomer App 20100160531 - Leffew; Kenneth Wayne ; et al.	2010-06-24
Fluoropolymer Produced by Aqueous Polymerization Using Dispersed Particulate of Fluorinated Ionomer App 20100160490 - Leffew; Kenneth Wayne ; et al.	2010-06-24
Fluoropolymer Produced by Aqueous Polymerization Using Dispersed Particulate of Fluorinated Ionomer Produced In Situ App 20100160510 - Aten; Ralph Munson ; et al.	2010-06-24
Fluorinated Ionomer Produced by Aqueous Polymerization Using Dispersed Particulate of Fluorinated Ionomer Produced In Situ App 20100160465 - Aten; Ralph Munson ; et al.	2010-06-24
Semibatch Copolymerization Process For Compositionally Uniform Copolymers App 20100036064 - Leffew; Kenneth Wayne ; et al.	2010-02-11
Process for crystallizing at least a portion of a crystallizable condensation homopolymer to form solid particles Grant 6,835,335 - Kapur , et al. December 28, 2	2004-12-28
Process for crystallizing at least a portion of a crystallizable condensation homopolymer to form solid particles App 20030222363 - Kapur, Vivek ; et al.	2003-12-04
Process for polymerization of polyester oligomers Grant 5,811,496 - Iwasyk , et al. September 22, 1	1998-09-22
Production of poly(trimethylene terephthalate) Grant 5,763,104 - Stouffer , et al. June 9, 1	1998-06-09
Process for forming crystalline polymer pellets Grant 5,744,074 - Stouffer , et al. April 28, 1	1998-04-28
Production of poly(ethylene terephthalate) Grant 5,714,262 - Stouffer , et al. February 3, 1	1998-02-03

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