Inventor
HEFNER JR ROBERT E
US216 patents
⚠️ This page may combine multiple inventors who share the name “HEFNER JR ROBERT E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DOW CHEMICAL CO
46 patentsUS5442039AAug 15, 1995
Mesogenic polycyanates and thermosets thereof
DOW CHEMICAL CO134 citations98
US5428125AJun 27, 1995
Mesogenic polycyanates and thermosets thereof
DOW CHEMICAL CO91 citations96
US5164464ANov 17, 1992
Vinyl ester resins containing mesogenic/rigid rodlike moieties
DOW CHEMICAL CO62 citations96
US5066750ANov 19, 1991
Vinyl ester resins containing mesogenic/rigid rodlike moieties
DOW CHEMICAL CO51 citations96
US4962163AOct 9, 1990
Vinyl ester resins containing mesogenic/rigid rodlike moieties
DOW CHEMICAL CO81 citations96
US4477629AOct 16, 1984
Cyanate-containing polymers
DOW CHEMICAL CO65 citations96
US4618658AOct 21, 1986
Polymer modified epoxy resin compositions
DOW CHEMICAL CO115 citations95
US5510431AApr 23, 1996
Cure controlled catalyzed mixtures of epoxy resins and curing agents containing mesogenic moieties
DOW CHEMICAL CO46 citations93
US5206321AApr 27, 1993
Polycyanates containing mesogenic moieties as lateral substituents
DOW CHEMICAL CO21 citations93
US5189117AFeb 23, 1993
Polyurethane from epoxy compound adduct
DOW CHEMICAL CO31 citations93
US4546131AOct 8, 1985
Polymer modified cyanate mixture and epoxy resins thereof
DOW CHEMICAL CO30 citations93
US4544704AOct 1, 1985
Polymeric cyanate compositions
DOW CHEMICAL CO28 citations93
US4540829ASep 10, 1985
Allylated di or polycyclopentadiene diphenols
DOW CHEMICAL CO31 citations93
US4486582ADec 4, 1984
Reactive monomers and thermosettable compositions containing same
DOW CHEMICAL CO31 citations93
US4443580AApr 17, 1984
DCPD Modified polyester physical property improvement
DOW CHEMICAL CO27 citations93
US5736620AApr 7, 1998
Glycidyl ether compounds containing mesogenic moieties
DOW CHEMICAL CO35 citations92
US5686551ANov 11, 1997
Hydroxy ether polymers as thermoplastic barrier resins
DOW CHEMICAL CO31 citations92
US5387657AFeb 7, 1995
Epoxy resins containing thiadiazole and/or oxadiazole moieties
DOW CHEMICAL CO40 citations92
US5296570AMar 22, 1994
Curable mixtures of mesogenic epoxy resins and mesogenic polyamines and cured compositions
DOW CHEMICAL CO21 citations92
US5290887AMar 1, 1994
Epoxy resins containing thiadiazole and/or oxadiazole moieties
DOW CHEMICAL CO32 citations92
US5024785AJun 18, 1991
Liquid crystal/rigid rodlike polymer modified epoxy/vinyl ester resins
DOW CHEMICAL CO22 citations92
US4474619AOct 2, 1984
Conditioner for flotation of coal
DOW CHEMICAL CO32 citations92
US5458929AOct 17, 1995
Cure controlled catalyzed mixtures of epoxy resins and curing agents containing mesogenic moieties, B-staged and cured products therefrom
DOW CHEMICAL CO47 citations91
US4410686AOct 18, 1983
Norbornyl modified polyesteramides and process for preparing same
DOW CHEMICAL CO33 citations90
US5637669AJun 10, 1997
Epoxy resins containing discotic mesogenic moieties
DOW CHEMICAL CO21 citations84
US5235008AAug 10, 1993
Polymer modified adducts of epoxy resins and active hydrogen containing compounds containing mesogenic moieties
DOW CHEMICAL CO20 citations82
US5208306AMay 4, 1993
Mesogenic alkenyl functional maleimides and thermosets thereof
DOW CHEMICAL CO15 citations82
US4753982AJun 28, 1988
Vinyl ester and norbornyl terminated unsaturated polyester (polyesteramide) blends
DOW CHEMICAL CO21 citations82
US4701257AOct 20, 1987
Fatty esters of alkanolamine hydroxyalkylates as oxidized coal conditioner in froth flotation process
DOW CHEMICAL CO24 citations82
US4683276AJul 28, 1987
Cyanate functional maleimide thermosetting composition
DOW CHEMICAL CO19 citations82
US4680378AJul 14, 1987
Cyanate functional maleimide and polyamine copolymer
DOW CHEMICAL CO20 citations82
US4581425AApr 8, 1986
Thermosettable resin composition containing alkenyl phenyl cyanate
DOW CHEMICAL CO23 citations82
US4558115ADec 10, 1985
Thermosettable resin compositions containing a polyepoxide and an alkenyl phenyl cyanate
DOW CHEMICAL CO21 citations82
US4408033AOct 4, 1983
Polyurethanes prepared from polyisocyanate, polyol and phosphonopolyester oligomers
DOW CHEMICAL CO26 citations82
US4360647ANov 23, 1982
Phosphonate terminated dicyclopentadiene modified polyesters
DOW CHEMICAL CO25 citations82
US4278533AJul 14, 1981
Conditioner for flotation of oxidized coal
DOW CHEMICAL CO25 citations82
US4253944AMar 3, 1981
Conditioner for flotation of oxidized coal
DOW CHEMICAL CO22 citations82
US4555563ANov 26, 1985
Imide functional polyphenols; thermosettable compositions containing same and cured products therefrom
DOW CHEMICAL CO24 citations81
US4782124ANov 1, 1988
Polycarbonate modified epoxy resins
DOW CHEMICAL CO19 citations80
US6353079B1Mar 5, 2002
Epoxy resin and epoxy di (meth)acrylate from hydroxyaliphatic bisphenol
DOW CHEMICAL CO10 citations74
US5612479AMar 18, 1997
Polyphenols containing mesogenic moieties as lateral substituents
DOW CHEMICAL CO5 citations74
US5602211AFeb 11, 1997
Adducts of epoxy resins and active hydrogen containing compounds containing mesogenic moieties
DOW CHEMICAL CO10 citations74
US5491201AFeb 13, 1996
Mesogenic cyclic imino ether-containing compositions and polymerization products thereof
DOW CHEMICAL CO12 citations74
US5486580AJan 23, 1996
Mesogenic novolacs and resins
DOW CHEMICAL CO11 citations74
US5470946ANov 28, 1995
Products resulting from polymerizing or curing polycyanates containing mesogenic moieties as lateral substituents
DOW CHEMICAL CO4 citations74
US5464912ANov 7, 1995
Amines from nitro group terminated mesogenic epoxy resin adducts with reduced hydroxyl group functionality
DOW CHEMICAL CO8 citations74
ROHM & HAAS ELECT MAT
2 patentsHEFNER JR ROBERT E
1 patentDOW GLOBAL TECHNOLOGIES INC
1 patentShowing the top 50 of 216 patents by PatentIndex Score.