Inventor
FRIESE HANS-HERBERT
DE15 patents
Patents
15 patentsUS4755187AJul 5, 1988
Method for producing waterproof leather
HENKEL KGAA20 citations81
US4744794AMay 17, 1988
Leather fatliquoring agents combinable with tanning and retanning compositions
HENKEL KGAA13 citations73
US4772289ASep 20, 1988
Primer for leather finishes
HENKEL KGAA11 citations72
US4741738AMay 3, 1988
Sulfonation of fats and oils
HENKEL KGAA7 citations72
US4527992AJul 9, 1985
Process for the production of waterproof leathers and skins
HENKEL KGAA14 citations71
US4903362AFeb 27, 1990
Sulfited fats as oiling agents for leather and skins
HENKEL KGAA6 citations70
US4800045AJan 24, 1989
Sulfited fats
HENKEL KGAA5 citations70
US4938779AJul 3, 1990
Chrome tanning of leather with reduced waste of chromium
HENKEL KGAA11 citations68
US5041597AAug 20, 1991
Surface-active sulfophosphoric-acid-(partial)-alkyl-esters
HENKEL KGAA2 citations62
US4729767AMar 8, 1988
Amphoteric fatliquoring composition
HENKEL KGAA5 citations62
US4309176AJan 5, 1982
Process for the oiling and impregnation of leather and pelts
HENKEL KGAA6 citations62
US4451261AMay 29, 1984
Preparation of lubricating agents for leathers and furs
HENKEL KGAA3 citations61
US4946471AAug 7, 1990
Adhesion promoter for leather finishing
HENKEL KGAA4 citations60
US4956116ASep 11, 1990
Surface-active, saturated sulfophosphoric acid-(partial)-alkyl esters
HENKEL KGAA1 citations51
US4799932AJan 24, 1989
Oiling agents based on sulfosuccinic acid monoamides
HENKEL KGAA1 citations51