Inventor
WEIGERT FRANK J
29 patents
Patents
29 patentsUS5268122ADec 7, 1993
Gem-dihydropolyfluoroalkanes and monohydropolyfluoroalkenes, processes for their production, and use of gem-dihydropolyfluoroalkanes in cleaning compositions
DU PONT64 citations96
US5157171AOct 20, 1992
Process for chlorofluoropropanes
DU PONT52 citations96
US5302765AApr 12, 1994
Catalytic process for producing CF3 CHClF
DU PONT28 citations92
US5177273AJan 5, 1993
Process for the manufacture of halogen-substituted propanes containing hydrogen and at least five fluorine substituents
DU PONT36 citations92
US5146018ASep 8, 1992
Hydrogenolysis/dehydrohalogenation process
DU PONT24 citations92
US5068473ANov 26, 1991
Hydrogenolysis/dehydrohalogenation process
DU PONT36 citations92
US5073290ADec 17, 1991
Compositions of 1,1,1,2,2,5,5,5-octafluoro-4-trifluormethypentane and use thereof for cleaning solid surfaces
DU PONT19 citations82
US4254061AMar 3, 1981
Preparation of monomethylamine
DU PONT28 citations82
US5216152AJun 1, 1993
Process for the catalytic pyrolysis of bis(hexamethylene)triamine
DU PONT8 citations74
US5120883AJun 9, 1992
Catalytic process for producing CCl3 CF3
DU PONT18 citations74
US4820884AApr 11, 1989
Defluorination process using activated carbon
DU PONT17 citations74
US4814522AMar 21, 1989
Catalytic fluoroolefin transhalogenations
DU PONT18 citations74
US4734503AMar 29, 1988
Catalytic transhalogenation of haloaromatics
DU PONT10 citations74
US4313003AJan 26, 1982
Preparation of dimethylamine
DU PONT15 citations74
US4136156AJan 23, 1979
Production of hcn from organic nitriles
DU PONT10 citations74
US5250213AOct 5, 1993
1,1,1,2,2,3,3,4,4,5,6-undecafluorohexane and use thereof in compositions and processes for cleaning
DU PONT12 citations73
US5237088AAug 17, 1993
Transfer hydrogenation of nitriles using amine donors
DU PONT4 citations63
US5030372AJul 9, 1991
Catalytic equilibration to improve the relative yield of selected halocarbons
DU PONT4 citations63
US4910351AMar 20, 1990
Process for preparing (polyfluoroalkyl)polyfluoroarenes
DU PONT2 citations63
US4820883AApr 11, 1989
Defluorination process using activated carbon
DU PONT4 citations63
US4804784AFeb 14, 1989
Process for preparing methyl- and ethyl-substituted primary anilines
DU PONT2 citations63
US4754084AJun 28, 1988
Preparation of substituted fluorobenzenes
DU PONT4 citations63
US4593124AJun 3, 1986
Process for preparing a mixture of methyl- or ethyl-substituted primary anilines
DU PONT5 citations63
US4164552AAug 14, 1979
Preparation of hydrogen cyanide
DU PONT4 citations63
US5221361AJun 22, 1993
Compositions of 1,1,1,2,2,5,5,5,-octafluoro-4-trifluoromethylpentane and use thereof for cleaning solid surfaces
DU PONT5 citations62
US5406009AApr 11, 1995
Catalytic equilibration to improve the relative yield of selected halocarbons
DU PONT0 citations52
US5171890ADec 15, 1992
Process for preparing methyl- and ethyl-substituted primary anilines
DU PONT0 citations52
US5126484AJun 30, 1992
Process for preparing methyl- and ethyl-substituted primary anilines
DU PONT0 citations52
US5093527AMar 3, 1992
Process for preparing methyl- and ethyl-substituted primary anilines
DU PONT0 citations52