Inventor
LENZ HANS-RUDI
DE6 patents
⚠️ This page may combine multiple inventors who share the name “LENZ HANS-RUDI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WELLA AG
5 patentsUS4780310AOct 25, 1988
Cosmetic compositions based upon N-hydroxypropyl-chitosans, new N-hyroxypropyl-chitosans, as well as processes for the production thereof
WELLA AG46 citations93
US4954619ASep 4, 1990
O-benzyl-N-hydroxyalkyl derivatives of chitosan and nail polish containing the same
WELLA AG29 citations92
US4931271AJun 5, 1990
Cosmetic compostions based upon N-hydroxybutyl-chitosans, N-hydroxybutyl-chitosans as well as processes for the production thereof
WELLA AG27 citations92
US4923977AMay 8, 1990
Cosmetic composition based upon N-hydroxypropylisopropylether chitosans as well as new N-hydroxypropylisopropylether derivatives of chitosan
WELLA AG25 citations92
US4845204AJul 4, 1989
Cosmetic compositions on the basis of alkyl-hydroxypropyl-substituted chitosan derivatives, new chitosan derivatives and processes for the production thereof
WELLA AG18 citations71