Inventor
BURRI PETER
13 patents
Patents
13 patentsUS4254032AMar 3, 1981
Carbazolylmethane compounds
CIBA GEIGY CORP17 citations81
US4154463AMay 15, 1979
Pressure-sensitive or heat-sensitive recording material containing a carbazolyl methane compound
CIBA GEIGY CORP22 citations81
US4275005AJun 23, 1981
Carbazolylmethane compounds
CIBA GEIGY CORP7 citations73
US4355823AOct 26, 1982
Pressure-sensitive or heat-sensitive recording material
CIBA GEIGY CORP10 citations72
US4210591AJul 1, 1980
Indolinospiropyrane compounds
CIBA GEIGY CORP9 citations72
US4369326AJan 18, 1983
Carbazolylmethane compounds
CIBA GEIGY CORP5 citations62
US4343944AAug 10, 1982
Indolinospiropyrane compounds
CIBA GEIGY CORP1 citations61
US4339385AJul 13, 1982
Indolinospiropyrane compounds
CIBA GEIGY CORP2 citations61
US4291902ASep 29, 1981
Recording material employing substituted 3,6-diaminophthalides as color formers
CIBA GEIGY CORP2 citations61
US4238130ADec 9, 1980
Pressure-sensitive or heat-sensitive recording material
CIBA GEIGY CORP5 citations61
US4202820AMay 13, 1980
Pressure-sensitive or heat-sensitive recording material containing a carbazolyl methane compound
CIBA GEIGY CORP3 citations61
US4191690AMar 4, 1980
Substituted 3,6-diaminophthalides
CIBA GEIGY CORP5 citations61
US5244860ASep 14, 1993
Pressure-sensitive recording and transfer material
CIBA GEIGY CORP0 citations48