Inventor · disambiguated record
Howard Matthew Colquhoun
Also filed as: COLQUHOUN HOWARD · COLQUHOUN HOWARD M · COLQUHOUN HOWARD MATTHEW
18 granted patents·4 pending applications·85 citations·filing 1984–2020
92Inventor score
Files withICI PLC5DUPONT TEIJIN FILMS US LP3CYTEC TECH CORP2DUPONT TEIJIN FILMS US LTD2JOHNSON MATTHEY PLC2
Top patents by PatentIndex Score
22 records- 0190US9074052B2Copolyesterimides of poly(alkylene terephthalate)s having high glass transition temperature and film made therefromDUPONT TEIJIN FILMS US LTD·Filed 2012·Granted Jul 7, 2015·5 cites·13 claims
- 0289US9096724B2Copolyesterimides of poly(alkylene naphthalate)s having high glass transition temperature and film made therefromDUPONT TEIJIN FILMS US LTD·Filed 2012·Granted Aug 4, 2015·5 cites·13 claims
- 0384US9840590B2Copolyesterimides derived from N,N′-bis-(hydroxyalkyl)-benzophenone-3,3′,4,4′-tetracarboxylic diimide and films made therefromSANKEY STEPHEN WILLIAM·Filed 2014·Granted Dec 12, 2017·2 cites·19 claims
- 0475US10377862B2Copolyesterimides derived from N,N′-bis-(hydroxyalkyl)-benzophenone-3,3′,4,4′-tetracarboxylic diimide and films made therefromDUPONT TEIJIN FILMS US LP·Filed 2017·Granted Aug 13, 2019·0 cites·19 claims
- 0574US7736539B2Ion-conducting polymers and membranes comprising themJOHNSON MATTHEY PLC·Filed 2005·Granted Jun 15, 2010·6 cites·16 claims
- 0670US9637588B2Copolyesterimides derived from aromatic dicarboxylic acids and aliphatic glycols and films made therefromDUPONT TEIJIN FIMS U S LTD PARTNERSHIP·Filed 2014·Granted May 2, 2017·4 cites·15 claims
- 0768US9422399B2Copolyesterimides derived from N,N′-bis-(hydroxyalkyl)-3,3′,4,4′-diphenylsulfonetetracarboxylic diimide and films made therefromDUPONT TEIJIN FILMS U S LTD PARTNERSHIP·Filed 2014·Granted Aug 23, 2016·0 cites·19 claims
- 0868US2020231754A1Copolyesterimides derived from n,n'-bis-(hydroxyalkyl)-pyromellitic diimide and films made therefromDUPONT TEIJIN FILMS US LP·Filed 2020·Application pending·0 cites
- 0967US9963563B2Reversible derivatization of poly (aryl ether ketones)CYTEC TECH CORP·Filed 2017·Granted May 8, 2018·0 cites·10 claims
- 1060US9828478B2Reversible derivatization of poly (aryl ether ketones)CYTEC TECH CORP·Filed 2015·Granted Nov 28, 2017·0 cites·11 claims
- 1160US5693740AAromatic polysulphonesUNITED UTILITES PLC·Filed 1994·Granted Dec 2, 1997·25 cites·38 claims
- 1260US2016122475A1Copolyesterimides derived from n,n'-bis-(hydroxyalkyl)-pyromellitic diimide and films made therefromSANKEY STEPHEN WILLIAM·Filed 2014·Application pending·0 cites
- 1358US2011040045A1Reversible derivatization of poly (aryl ether ketones)COLQUHOUN HOWARD MATTHEW·Filed 2008·Application pending·0 cites
- 1454US4604485AChemical processICI PLC·Filed 1984·Granted Aug 5, 1986·4 cites·18 claims
- 1552US10450411B2Copolyesterimides comprising bis(2-hydroxyalkyl)-2,2′-(1,4-phenylene)bis(1,3-dioxoisoindoline-5-carboxylate) and articles made therefromDUPONT TEIJIN FILMS US LP·Filed 2015·Granted Oct 22, 2019·0 cites·17 claims
- 1652US4777300AAromatic ketoneICI PLC·Filed 1987·Granted Oct 11, 1988·4 cites·10 claims
- 1751US4599452AChemical processICI PLC·Filed 1984·Granted Jul 8, 1986·4 cites·11 claims
- 1849US5698105APolymer porous structure and processNORTH WEST WATER GROUP PLC·Filed 1994·Granted Dec 16, 1997·14 cites·27 claims
- 1945US2010047658A1Ion-conducting membraneJOHNSON MATTHEY PLC·Filed 2007·Application pending·0 cites
- 2043US4612399APurification of 4-fluoro-4'-hydroxybenzophenoneICI PLC·Filed 1985·Granted Sep 16, 1986·2 cites·10 claims
- 2140US5767324APolyolsICI PLC·Filed 1996·Granted Jun 16, 1998·8 cites·8 claims
- 2230US5847075APolymer and porous structureNORTH WEST WATER GROUP PLC·Filed 1994·Granted Dec 8, 1998·2 cites·31 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →