Inventor
HERZOG HELMUT
AT10 patents
⚠️ This page may combine multiple inventors who share the name “HERZOG HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
8 patentsUS4812568AMar 14, 1989
Process for the preparation of 6,13-dihydroquinacridones and quinacridones
BAYER AG7 citations73
US4041053AAug 9, 1977
Process for the preparation of anthraquinone compounds
BAYER AG3 citations61
US3989450ANov 2, 1976
Nitroanthraquinones
BAYER AG2 citations61
US4206130AJun 3, 1980
Process for the preparation of 1,5-dichloroanthraquinone
BAYER AG2 citations60
US4045457AAug 30, 1977
Anthraquinone dyestuffs
BAYER AG3 citations60
US4104284AAug 1, 1978
Nitroanthraquinones
BAYER AG0 citations51
US4056544ANov 1, 1977
Anthraquinone compounds
BAYER AG0 citations51
US4000167ADec 28, 1976
Nitroanthraquinones
BAYER AG1 citations51