Inventor · disambiguated record
Michael T. Sheehan
Also filed as: SHEEHAN MICHAEL T · SHEEHAN MICHAEL THOMAS
46 granted patents·5 pending applications·295 citations·filing 1988–2016
98Inventor score
Files withHOECHST CELANESE CORP27DUPONT ELECTRONIC POLYMERS L P8DU PONT4CHEMFIRST ELECTRONIC MATERIALS3PONT ELECTRONIC POLYMERS L P D2
Top patents by PatentIndex Score
51 records- 0190US7371800B2Derivatized novolak polyhydroxystyrene from hydroxyphenylmethylcarbinolDUPONT ELECTRONIC POLYMERS L P·Filed 2005·Granted May 13, 2008·11 cites·6 claims
- 0290US5087772AMethod for preparing 4-hydroxystyreneHOECHST CELANESE CORP·Filed 1990·Granted Feb 11, 1992·38 cites·7 claims
- 0383US9169383B2Preparation, purification and use of high-X diblock copolymersDU PONT·Filed 2013·Granted Oct 27, 2015·4 cites·7 claims
- 0482US7312281B2Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purityDUPONT ELECTRONIC POLYMERS L P·Filed 2005·Granted Dec 25, 2007·6 cites·36 claims
- 0580US4880487AHot melt adhesives containing poly(p-hydroxystyrene) homopolymers and copolymers and bonding methods employing sameHOECHST CELANESE CORP·Filed 1988·Granted Nov 14, 1989·30 cites·35 claims
- 0679US5438142AFunctionalized tris(hydroxyphenyl) compoundsHOECHST CELANESE CORP·Filed 1993·Granted Aug 1, 1995·16 cites·2 claims
- 0778US6414110B1Purification meansTRIQUEST LP·Filed 2000·Granted Jul 2, 2002·18 cites·9 claims
- 0876US7632896B2Derivatized novolak polyhydroxystyreneDUPONT ELECTRONIC POLYMERS L P·Filed 2008·Granted Dec 15, 2009·2 cites·8 claims
- 0975US7521526B2Methods for preparing polymers from phenolic materials and compositions relating theretoDUPONT ELECTRONIC POLYMERS L P·Filed 2007·Granted Apr 21, 2009·2 cites·1 claims
- 1073US7566752B2Epoxy resins or polyisocyanates reacted with derivatized novolak polyhydroxystyrenePONT ELECTRONIC POLYMERS L P D·Filed 2008·Granted Jul 28, 2009·2 cites·1 claims
- 1171US5239015AProcess for making low optical density polymers and copolymers for photoresists and optical applicationsHOECHST CELANESE CORP·Filed 1991·Granted Aug 24, 1993·19 cites·53 claims
- 1270US5300559APolyamines derived from THPB and processes for preparing the sameHOECHST CELANESE CORP·Filed 1993·Granted Apr 5, 1994·16 cites·21 claims
- 1369US7662538B2Derivatized polyhydroxystyrenes (DPHS) with a novolak type structure and blocked DPHS (BDPHS) and processes for preparing the samePONT ELECTRONIC POLYMERS L P D·Filed 2005·Granted Feb 16, 2010·2 cites·5 claims
- 1469US5625007AProcess for making low optical polymers and copolymers for photoresists and optical applicationsHOECHST CELANESE CORP·Filed 1994·Granted Apr 29, 1997·15 cites·5 claims
- 1568US6787611B2Purification meansCHEMFIRST ELECTRONIC MATERIALS·Filed 2003·Granted Sep 7, 2004·9 cites·13 claims
- 1668US6759483B2Preparation of homo-, co- and terpolymers of substituted styrenesCHEMFIRST ELECTRONIC MATERIALS·Filed 2002·Granted Jul 6, 2004·10 cites·29 claims
- 1768US6593431B2Purification meansCHEMFIRST ELECTRONIC MATERIALS·Filed 2002·Granted Jul 15, 2003·9 cites·10 claims
- 1866US5264528AProcess for the preparation of 4-hydroxystyrene polymers from 4-acetoxystyrene polymersHOECHST CELANESE CORP·Filed 1992·Granted Nov 23, 1993·15 cites·15 claims
- 1965US5304610AAmphoteric copolymer derived from vinylpyridine and acetoxystyreneHOECHST CELANESE CORP·Filed 1993·Granted Apr 19, 1994·15 cites·1 claims
- 2062US5347051AProcesses for preparing aminesHOECHST CELANESE CORP·Filed 1994·Granted Sep 13, 1994·6 cites·13 claims
- 2160US7897697B2Epoxy resin, blocked polyisocyanate or polymers with polyhydroxystyrenes having novolak structureDUPONT ELECTRONIC POLYMERS L P·Filed 2009·Granted Mar 1, 2011·0 cites·3 claims
- 2260US7728082B2Methods for preparing polymers from phenolic materials and compositions relating theretoDUPONT ELECTRONIC POLYMERS L P·Filed 2009·Granted Jun 1, 2010·0 cites·1 claims
- 2358US7678945B2Derivatized polyhydroxystyrenes with a novolak type structure and processes for preparing the sameDUPONT ELECTRONIC POLYMERS L P·Filed 2008·Granted Mar 16, 2010·0 cites·1 claims
- 2457US7148320B2Polymer purificationDUPONT ELECTRONIC POLYMERS L P·Filed 2004·Granted Dec 12, 2006·3 cites·26 claims
- 2557US2010105785A1Derivatized polyhydroxystyrenes (DPHS) with a novolak type structure and blocked DPHS (BDPHS) and processes for preparing the sameSHEEHAN MICHAEL T·Filed 2009·Application pending·0 cites
- 2656US6864324B2Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purityCHEM FIRST ELECTRONIC MATERIAL·Filed 2002·Granted Mar 8, 2005·5 cites·44 claims
- 2752US5424387ADi-amino compounds and processes for preparing the sameHOECHST CELANESE CORP·Filed 1994·Granted Jun 13, 1995·4 cites·22 claims
- 2850US5300691ASubstituted benzyl aminesHOECHST CELANESE CORP·Filed 1993·Granted Apr 5, 1994·3 cites·4 claims
- 2949US9815947B2Substantially symmetrical 3-arm star block copolymersDU PONT·Filed 2016·Granted Nov 14, 2017·0 cites·11 claims
- 3049US5256809AMethod for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefromHOECHST CELANESE CORP·Filed 1992·Granted Oct 26, 1993·4 cites·18 claims
- 3149US2009076230A1Process for preparing compositionally uniform copolymersSHEEHAN MICHAEL THOMAS·Filed 2008·Application pending·0 cites
- 3247US7534837B2Random copolymers of ethylene and 4-vinylphenyl esters and method for preparing the sameDU PONT·Filed 2005·Granted May 19, 2009·0 cites·4 claims
- 3346US2015004379A1Preparation, purification and use of high-x diblock copolymersDU PONT·Filed 2013·Application pending·0 cites
- 3445US5726295APhotoactive coumarin derivativesHOECHST CELANESE CORP·Filed 1997·Granted Mar 10, 1998·3 cites·23 claims
- 3544US8163464B2Propanoates and processes for preparing the sameSHEEHAN MICHAEL T·Filed 2009·Granted Apr 24, 2012·0 cites·14 claims
- 3643US5241098AMethod for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefromHOECHST CELANESE CORP·Filed 1990·Granted Aug 31, 1993·2 cites·22 claims
- 3742US5773591AProcess for preparing coumarin sulfonatesHOECHST CELANESE CORP·Filed 1997·Granted Jun 30, 1998·2 cites·19 claims
- 3841US5312990ADi-amino compoundsHOECHST CELANESE CORP·Filed 1993·Granted May 17, 1994·3 cites·4 claims
- 3941US5210149AAmphoteric copolymer derived from vinylpyridine and acetoxystyreneHOECHST CELANESE CORP·Filed 1992·Granted May 11, 1993·4 cites·1 claims
- 4040US5346983ASubstituted phenyl compounds and processes for preparing the sameHOECHST CELANESE CORP·Filed 1993·Granted Sep 13, 1994·3 cites·6 claims
- 4140US5300589ASubstituted triphenyl compounds & processes for preparing the sameHOECHST CELANESE CORP·Filed 1993·Granted Apr 5, 1994·3 cites·10 claims
- 4240US2015337068A1Preparation, purification and use of high-x diblock copolymersBERGGREN KARL K·Filed 2013·Application pending·0 cites
- 4337US5739295APhotoactive coumarin sulfonate compoundsHOECHST CELANESE CORP·Filed 1997·Granted Apr 14, 1998·1 cites·30 claims
- 4437US5312988AAmines derived from THPEHOECHST CELANESE CORP·Filed 1993·Granted May 17, 1994·2 cites·4 claims
- 4536US5399766AAmines and processes for preparing the sameHOECHST CELANESE CORP·Filed 1994·Granted Mar 21, 1995·2 cites·4 claims
- 4636US5354907AAmines derived from THPE and processes for preparing the sameHOECHST CELANESE CORP·Filed 1994·Granted Oct 11, 1994·2 cites·11 claims
- 4735US2013109816A1Processes for removing sulfur-containing end groups from polymersFARNHAM WILLIAM BROWN·Filed 2011·Application pending·0 cites
- 4833US5347049AProcesses for preparing diamino compoundsHOECHST CELANESE CORP·Filed 1994·Granted Sep 13, 1994·1 cites·13 claims
- 4932US5422417ASubstituted phenyl compounds and processes for preparing the sameHOECHST CELANESE CORP·Filed 1994·Granted Jun 6, 1995·0 cites·9 claims
- 5032US5232995AAmphoteric copolymer derived from vinylpyridine and acetoxystyreneHOECHST CELANESE CORP·Filed 1993·Granted Aug 3, 1993·2 cites·5 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
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