Inventor
LANGLEY ROBERT
US25 patents
⚠️ This page may combine multiple inventors who share the name “LANGLEY ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY CORP
15 patentsUS5279654AJan 18, 1994
Phthalocyanine pigment compositions
CIBA GEIGY CORP50 citations88
US4104277AAug 1, 1978
Process for preparing an alpha or beta form copper phthalocyanine pigment
CIBA GEIGY CORP18 citations82
US4981888AJan 1, 1991
Resin compositions
CIBA GEIGY CORP8 citations73
US5250111AOct 5, 1993
Pigment compositions
CIBA GEIGY CORP10 citations71
US4801638AJan 31, 1989
Production of pigmentary copper phthalocyanine
CIBA GEIGY CORP5 citations71
US4313766AFeb 2, 1982
Process for the production of a pigment composition
CIBA GEIGY CORP11 citations71
US4152171AMay 1, 1979
Preparation of α- β- and γ-copper phthalocyanine pigments
CIBA GEIGY CORP11 citations71
US5614013AMar 25, 1997
Pigment compositions
CIBA GEIGY CORP8 citations68
US5449774ASep 12, 1995
Production of beta form pigmentary copper phthalocyanine
CIBA GEIGY CORP7 citations68
US4801634AJan 31, 1989
Production of pigmentary copper phthalocyanine
CIBA GEIGY CORP2 citations60
US4694078ASep 15, 1987
Production of pigmentary copper phthalocyanine
CIBA GEIGY CORP2 citations60
US4091028AMay 23, 1978
Production of phthalocyanine green
CIBA GEIGY CORP6 citations60
US4920217AApr 24, 1990
Production of dimethylaminomethyl copper phthalocyanine
CIBA GEIGY CORP5 citations57
US4252565AFeb 24, 1981
Stabilized phthalocyanines
CIBA GEIGY CORP3 citations55
US5212221AMay 18, 1993
Stabilized phthalocyanine pigment compositions
CIBA GEIGY CORP0 citations46
COBE LAB
5 patentsUS5951877ASep 14, 1999
Particle filter method
COBE LAB109 citations98
US5913768AJun 22, 1999
Particle filter apparatus
COBE LAB110 citations98
US5906570AMay 25, 1999
Particle filter apparatus
COBE LAB124 citations98
US5674173AOct 7, 1997
Apparatus for separating particles
COBE LAB244 citations98
US5722926AMar 3, 1998
Method for separating particles
COBE LAB113 citations97