Inventor
HERZOG DIETER
DE4 patents
Patents
4 patentsUS4990609AFeb 5, 1991
Sulfoethyl cellulose of high solution quality and a process for its production
WOLFF WALSRODE AG24 citations91
US4972007ANov 20, 1990
Use of cellulose derivatives in drilling fluids
WOLFF WALSRODE AG27 citations88
US5001232AMar 19, 1991
Carboxymethylsulphoethyl celluloses and a process for their preparation
WOLFF WALSRODE AG13 citations72
US5360902ANov 1, 1994
Process for producing methyl hydroxyalkyl cellulose ethers
WOLFF WALSRODE AG17 citations69