Inventor
SCHULZE HELMUT
DE9 patents
⚠️ This page may combine multiple inventors who share the name “SCHULZE HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AKZO NV
7 patentsUS4668396AMay 26, 1987
Dialysis membrane of modified cellulose with improved biocompatibility
AKZO NV36 citations91
US4391964AJul 5, 1983
Embedding mass of polyurethane
AKZO NV13 citations72
US4772393ASep 20, 1988
Cellulose dialysis membrane with improved biocompatibility
AKZO NV8 citations71
US4741927AMay 3, 1988
Production of cellulose dialysis membrane with improved biocompatibility
AKZO NV6 citations71
US4256869AMar 17, 1981
Polyurethanes from trans-cyclohexane-1,4-diisocyanate
AKZO NV10 citations71
US4024307AMay 17, 1977
Polyurethane solutions
AKZO NV11 citations65
US4814440AMar 21, 1989
Process for producing extractive-material-reduced cellulose
AKZO NV3 citations60
BBC BROWN BOVERI & CIE
2 patentsUS4263542AApr 21, 1981
Method and circuit arrangement for controlling an asynchronous motor supplied from a static frequency changer
BBC BROWN BOVERI & CIE14 citations68
US4369492AJan 18, 1983
Device for the protection of a converter which converts an impressed D-C current from a current source into an A-C current fed to a load
BBC BROWN BOVERI & CIE5 citations57