Kelsey; Donald Ross

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kelsey; Donald Ross.The latest application filed is for "polytrimethylene terephthalate having a low level of acrolein and a process for producing the same".

Company Profile

0.9.10

Kelsey; Donald Ross - Fulshear TX
KELSEY; Donald Ross - Guerneville CA
Kelsey; Donald Ross - Piscataway NJ

*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
Method and apparatus for screening of polycondensation catalysts Grant 7,732,211 - Kelsey , et al. June 8, 2	2010-06-08
Polytrimethylene Terephthalate Having A Low Level Of Acrolein And A Process For Producing The Same App 20080194793 - KELSEY; Donald Ross ; et al.	2008-08-14
Polytrimethylene terephthalate having a low level of acrolein and a process for producing the same Grant 7,381,787 - Kelsey , et al. June 3, 2	2008-06-03
Process for producing polytrimethylene terephthalate Grant 7,196,159 - Kelsey , et al. March 27, 2	2007-03-27
Polytrimethylene terephthalate having a low level of acrolein and a process for producing the same App 20060084783 - Kelsey; Donald Ross ; et al.	2006-04-20
Process for producing polytrimethylene terephthalate App 20060084781 - Kelsey; Donald Ross ; et al.	2006-04-20
Rapid crystallizing poly(trimethylene terephthalate) compositions and processes App 20050245655 - Kelsey, Donald Ross ; et al.	2005-11-03
Process for increasing the toughness of solid state polymerized poly (trimethylene terephthalate) pellets App 20050075479 - Blackbourn, Robert Lawrence ; et al.	2005-04-07
Process for producing polytrimethylene terephthalate (PTT) Grant 6,800,718 - Wilhelm , et al. October 5, 2	2004-10-05
Method and apparatus for screening of polycondensation catalysts App 20040014225 - Kelsey, Donald Ross ; et al.	2004-01-22
Process for making polytrimethylene terephthalate Grant 6,657,044 - Kelsey , et al. December 2, 2	2003-12-02
Process for recycling polytrimethylene terephthalate cyclic dimer Grant 6,576,774 - Scardino , et al. June 10, 2	2003-06-10
Process for recycling polytrimethylene terephthalate cyclic dimer App 20020032302 - Scardino, Betty Marrou ; et al.	2002-03-14
Process of producing polytrimethylene terephthalate (PTT) App 20020028909 - Kelsey, Donald Ross ; et al.	2002-03-07
Optimum dipropylene glycol content polytrimethylene terephthalate compositions App 20020009353 - Kelsey, Donald Ross ; et al.	2002-01-24
Process of producing polytrimethylene terephthalate (PTT) App 20010029289 - Kelsey, Donald Ross ; et al.	2001-10-11
Purification of 1,3-propanediol in carbonyl-containing stream Grant 6,245,879 - Kelsey , et al. June 12, 2	2001-06-12
Copolyester composition Grant 5,705,575 - Kelsey January 6, 1	1998-01-06
Rubber-modified impact polystyrenes Grant 4,080,406 - Kelsey March 21, 1	1978-03-21

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