Inventor
WEHOWSKY FRANK
DE11 patents
⚠️ This page may combine multiple inventors who share the name “WEHOWSKY FRANK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
10 patentsUS5648527AJul 15, 1997
Saturated fluoroalkylamines and their derivatives, and mixtures thereof
HOECHST AG20 citations91
US5069994ADec 3, 1991
Use of colorless, intensely fluorinated ammonium and iminium compounds as charge control agents for electrophotographic recording processes
HOECHST AG41 citations90
US4960543AOct 2, 1990
Urethane made from aliphatic fluorinated alcohols, isocyanates and substituted aromatic compounds, a process for their preparation, and their use
HOECHST AG19 citations81
US5648528AJul 15, 1997
Saturated fluoroalkylamines and their derivatives, and mixtures thereof
HOECHST AG17 citations80
US4709074ANov 24, 1987
Urethanes containing perfluoroalkyl and epichlorohydrin groups
HOECHST AG19 citations78
US4873306AOct 10, 1989
Urethanes containing fluorine and polysiloxane, process for their preparation and their use
HOECHST AG21 citations75
US4782175ANov 1, 1988
Urethanes composed of aliphatic fluoroalcohols, isocyanates and aromatic compounds, a process for their preparation and their use
HOECHST AG19 citations73
US4766234AAug 23, 1988
Urethanes which contain perfluoroalkyl groups, epichlorohydrin groups and dialcohol radicals, the preparation and use thereof
HOECHST AG12 citations73
US5103048AApr 7, 1992
Surface-active compounds having a perfluoroalkyl group and a nitrogen-containing aliphatic radical, a process for their preparation and their use
HOECHST AG9 citations72
US5053537AOct 1, 1991
Ammonium and iminium compounds
HOECHST AG4 citations60