Inventor
GUMPRECHT WILLIAM H
US13 patents
Patents
13 patentsUS4843181AJun 27, 1989
Process for the manufacture of 1,1,1-trifluorodichloroethane and 1,1,1,2-tetrafluorochloroethane
DU PONT54 citations96
US4851595AJul 25, 1989
Liquid phase halogen exchange process for the manufacture of 1,1,1,2-tetrafluoroethane
DU PONT58 citations95
US4311863AJan 19, 1982
Process for the manufacture of 1,1,1,2-tetrafluoroethane
DU PONT67 citations95
US5399549AMar 21, 1995
Process for the manufacture of pentafluoroethane
DU PONT30 citations92
US5608127AMar 4, 1997
Halogen exchange process for manufacture of hydrochlorofluoropropanes
DU PONT9 citations73
US5334787AAug 2, 1994
Process for the manufacture of pentafluoroethane
DU PONT18 citations73
USH1129HJan 5, 1993
Process for manufacture of 1,1,1,2-tetrafluoroethane
DU PONT10 citations73
US4960580AOct 2, 1990
Process for purifying hydrogen fluoride
DU PONT6 citations73
US5045634ASep 3, 1991
Fluorination of haloolefins
DU PONT15 citations71
US5051538ASep 24, 1991
Process for 1,1-dichloro-1-fluoroethane
DU PONT3 citations62
US4990320AFeb 5, 1991
Process for purifying hydrogen fluoride
DU PONT5 citations62
US4960742AOct 2, 1990
Spent antimony halide catalysts treatment
DU PONT1 citations51
US5302766AApr 12, 1994
Isomerization process
DU PONT1 citations42