Inventor
HUYFFER PAUL S
4 patents
Patents
4 patentsUS4124592ANov 7, 1978
Bis-indolyl phthalides and naphthalides
POLAROID CORP3 citations60
US4035401AJul 12, 1977
Intermediates for photographic dyes
POLAROID CORP3 citations56
US4104269AAug 1, 1978
Methoxymethoxy protected intermediates for photographic dyes
POLAROID CORP1 citations46
US3933849AJan 20, 1976
3,3-Disubstituted phthalides and naphthalides
POLAROID CORP1 citations46