Inventor
KUPPELMAIER HARALD
DE15 patents
⚠️ This page may combine multiple inventors who share the name “KUPPELMAIER HARALD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF AG
14 patentsUS4946762AAug 7, 1990
Monosubstituted and disubstituted phthalocyanines
BASF AG26 citations92
US5084592AJan 28, 1992
Azulenesquaric acid dyes, azulene intermediates therefor, and optical recording medium
BASF AG9 citations73
US4966798AOct 30, 1990
Optical recording medium
BASF AG9 citations73
US4806664AFeb 21, 1989
Novel tetraphenyldithiolene complexes, asymmetrically substituted benzoins, and optical recording materials containing the novel complexes
BASF AG12 citations73
US4876356AOct 24, 1989
Naphtholactam dyes and optical recording medium containing these days
BASF AG9 citations72
US5093492AMar 3, 1992
Methine dyes and optical recording medium containing same
BASF AG15 citations71
US5728867AMar 17, 1998
Carbonyloxy-substituted azulenesquaric acid dyes, intermediates therefor and optical recording medium
BASF AG2 citations62
US5221751AJun 22, 1993
Heterocyclic polymethine dyes with carbamate or amide groups
BASF AG3 citations62
US5169975ADec 8, 1992
Binary azulenesquaric acid dyes, their intermediates and optical recording medium
BASF AG2 citations62
US5122435AJun 16, 1992
Amido-containing azulene squaric acid dyes, intermediates therefor and optical recording medium
BASF AG6 citations62
US4830951AMay 16, 1989
Naphtholactamsquaric acid dyes and optical recording materials containing these dyes
BASF AG4 citations62
US5087727AFeb 11, 1992
A zulenes containing a urethane group
BASF AG1 citations52
US5064702ANov 12, 1991
Quinoxalinepentamethine dyes and optical recording medium containing same
BASF AG0 citations52
US5002863AMar 26, 1991
Naphtholactamtrimethine dyes and optical recording medium containing same
BASF AG1 citations51