Inventor
ROEHRSCHEID FREIMUND
DE13 patents
Patents
13 patentsUS5110983AMay 5, 1992
Hexafluoroisopropyl-containing monomers, process for their preparation and their use
HOECHST AG10 citations73
US5004797AApr 2, 1991
Partly fluorinated carboxylic acids and derivatives thereof, processes for their preparation and their use
HOECHST AG9 citations73
US4987238AJan 22, 1991
Process for the preparation of high-purity 5,5'-[2,2,2-trifluoro-1-(trifluoromethyl)-ethylidene]bis-1,3-isobenzofurandione
HOECHST AG12 citations72
US5637764AJun 10, 1997
Process for the preparation of brominated or chlorinated aromatic carboxylic acids
HOECHST AG10 citations71
US5288908AFeb 22, 1994
Process for the preparation of fluorine containing monomers
HOECHST AG2 citations62
US5274126ADec 28, 1993
Partially fluorinated tetracarboxylic acid and the dianhydride thereof, a process for their preparation and their use
HOECHST AG3 citations62
US5300717AApr 5, 1994
Process for the preparation of dixylylpropane
HOECHST AG3 citations61
US5175351ADec 29, 1992
Process for the preparation of alkanesulfonylbenzoic acids
HOECHST AG5 citations61
US4772754ASep 20, 1988
Process for the isolation of p-hydroxybenzaldehyde
HOECHST AG3 citations61
US4748278AMay 31, 1988
Process for the isolation of p-hydroxybenzaldehyde
HOECHST AG4 citations61
US5523472AJun 4, 1996
Process for the preparation of 5-fluoroanthranilic acid
HOECHST AG5 citations60
US5202469AApr 13, 1993
Partially fluorinated dicarboxylic acid and the acid chloride thereof, and a process for their preparation
HOECHST AG0 citations51
US5153334AOct 6, 1992
Partially fluorinated tetracarboxylic acid and the dianhydride thereof
HOECHST AG1 citations51