Inventor
COWAN STANLEY W
US44 patents
Patents
44 patentsUS5962198AOct 5, 1999
Photographic elements containing cyan dye-forming coupler having a particular formula
EASTMAN KODAK CO31 citations92
US6071686AJun 6, 2000
Photographic element containing pyrazoloazole coupler and a specific anti-fading combination
EASTMAN KODAK CO7 citations74
US6197071B1Mar 6, 2001
Formulations for dyeing keratin fibers comprising a pyrazolotriazole coupler and oxidation base
EASTMAN KODAK CO13 citations73
US6143485ANov 7, 2000
Pyrazolotriazle dye-forming photographic coupler
EASTMAN KODAK CO7 citations73
US5674666AOct 7, 1997
Photographic elements containing new cyan dye-forming coupler providing improved color reproduction
EASTMAN KODAK CO12 citations73
US5667952ASep 16, 1997
Photographic material and process comprising a bicyclic pyrazolo coupler
EASTMAN KODAK CO9 citations73
US4804620AFeb 14, 1989
Photographic material containing a novel polymeric dye-forming coupler
EASTMAN KODAK CO7 citations73
US6048680AApr 11, 2000
Photographic element containing pyrazoloazole coupler and a specific anti-fading combination
EASTMAN KODAK CO9 citations72
US5576150ANov 19, 1996
Photographic dye-forming coupler, emulsion layer, element, and process
EASTMAN KODAK CO8 citations69
US5834166ANov 10, 1998
Photographic element containing a particular cyan dye-forming coupler
EASTMAN KODAK CO2 citations63
US6004738ADec 21, 1999
Photographic elements containing cyan dye-forming coupler, coupler solvent and bisphenol derivative
EASTMAN KODAK CO4 citations62
US5399467AMar 21, 1995
Photographic couplers having a ballast containing a sulfone or sulfoxide group
EASTMAN KODAK CO3 citations62
US5382502AJan 17, 1995
Hydroxyquinoline cyan couplers and their process of production
EASTMAN KODAK CO3 citations62
US5378587AJan 3, 1995
Photographic material and process comprising a bicyclic pyrazolo coupler
EASTMAN KODAK CO2 citations62
US5360713ANov 1, 1994
Yellow dye-forming couplers and color photographic elements containing these couplers
EASTMAN KODAK CO2 citations62
US5360710ANov 1, 1994
Color photographic materials containing polymeric couplers
EASTMAN KODAK CO2 citations62
US5358829AOct 25, 1994
Photographic material and process comprising a bicyclic pyrazolo coupler
EASTMAN KODAK CO5 citations62
US5234805AAug 10, 1993
Photographic material and process comprising a pyrazolotriazole coupler
EASTMAN KODAK CO4 citations62
US5100772AMar 31, 1992
Magenta dye forming coupler for photographic material
EASTMAN KODAK CO3 citations62
US4914005AApr 3, 1990
Photographic element containing a cyan dye forming coupler
EASTMAN KODAK CO6 citations62
US6136522AOct 24, 2000
Photographic element containing pyrazoloazole coupler and a specific anti-fading combination
EASTMAN KODAK CO2 citations61
US5609996AMar 11, 1997
Photographic emulsion layer containing pyrazoloazole coupler exhibiting improved dye light fade
EASTMAN KODAK CO6 citations60
US5427898AJun 27, 1995
Yellow couplers having an arloxy coupling-off group which contains an ortho polarizable functional group
EASTMAN KODAK CO2 citations58
US6140031AOct 31, 2000
Photographic element containing a cyclic azole coupler and an anti-fading agent containing a combination of functionalities
EASTMAN KODAK CO1 citations52
US6071684AJun 6, 2000
Photographic element containing specific magenta coupler
EASTMAN KODAK CO0 citations52
US6040126AMar 21, 2000
Photographic yellow dye-forming couplers
EASTMAN KODAK CO1 citations52
US5976777ANov 2, 1999
Photographic element containing magenta coupler with particular substituent
EASTMAN KODAK CO1 citations52
US5614357AMar 25, 1997
Photographic element containing a particular cyan coupler bearing a sulfonyl containing ballast
EASTMAN KODAK CO1 citations52
US5457020AOct 10, 1995
Photographic material and process comprising a bicyclic pyrazolo coupler
EASTMAN KODAK CO0 citations52
US5358838AOct 25, 1994
Photographic elements containing new yellow-dye-forming tris couplers
EASTMAN KODAK CO0 citations52
US5358835AOct 25, 1994
Photographic elements containing new yellow-dye-forming tris couplers
EASTMAN KODAK CO0 citations52
US5340708AAug 23, 1994
Photographic elements containing new dye-forming tris couplers
EASTMAN KODAK CO0 citations52
US5250400AOct 5, 1993
Photographic material and process comprising a pyrazolotriazole coupler
EASTMAN KODAK CO1 citations52
US5237030AAug 17, 1993
Polymeric couplers prepared in the presence of a coupler solvent
EASTMAN KODAK CO0 citations52
US4992359AFeb 12, 1991
Polymeric couplers
EASTMAN KODAK CO0 citations52
US6140033AOct 31, 2000
Photographic element
EASTMAN KODAK CO0 citations51
US6030760AFeb 29, 2000
Photographic element containing specific magenta coupler and anti-fading agent
EASTMAN KODAK CO1 citations51
US5998122ADec 7, 1999
Photographic element containing pyrazoloazole magenta coupler and a specific anti-fading agent
EASTMAN KODAK CO1 citations51
US5965342AOct 12, 1999
Photographic elements containing specified cyan dye-forming couplers for improved heat and light stability
EASTMAN KODAK CO0 citations51
US5455147AOct 3, 1995
Methods of forming polymeric couplers
EASTMAN KODAK CO1 citations51
US5851748ADec 22, 1998
Photographic materials and process comprising a particular acylacetanilide yellow dye-forming coupler
EASTMAN KODAK CO1 citations50
US5811230ASep 22, 1998
Photographic material comprising a bicyclic pyrazolo coupler
EASTMAN KODAK CO0 citations48
US5358836AOct 25, 1994
Photographic elements containing new magenta-dye-forming tris couplers
EASTMAN KODAK CO0 citations41
US5358837AOct 25, 1994
Photographic elements containing new magenta-dye-forming bis couplers
EASTMAN KODAK CO0 citations40