Inventor
HARDER JOHN W
US37 patents
⚠️ This page may combine multiple inventors who share the name “HARDER JOHN W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EASTMAN KODAK CO
34 patentsUS6132947AOct 17, 2000
Cyan coupler, and stabilizer-containing photographic element and process
EASTMAN KODAK CO54 citations96
US4684604AAug 4, 1987
Oxidative release of photographically useful groups from hydrazide compounds
EASTMAN KODAK CO70 citations96
US5151343ASep 29, 1992
Photographic material and process comprising wash-out naphtholic coupler
EASTMAN KODAK CO23 citations92
US4923787AMay 8, 1990
Photographic element containing scavenger for oxidized developing agent
EASTMAN KODAK CO26 citations92
US5411839AMay 2, 1995
Image formation in color reversal materials using strong inhibitors
EASTMAN KODAK CO24 citations91
US4923784AMay 8, 1990
Photographic elements containing a bleach accelerator precursor
EASTMAN KODAK CO19 citations82
US6190851B1Feb 20, 2001
Photographic element, dispersion, compound and process
EASTMAN KODAK CO10 citations74
US6037113AMar 14, 2000
Photographic element and process for its use
EASTMAN KODAK CO8 citations74
US4865956ASep 12, 1989
Photographic elements containing a bleach accelerator precursor
EASTMAN KODAK CO16 citations74
US7629112B1Dec 8, 2009
Color photographic materials with yellow minimum density colorants
EASTMAN KODAK CO7 citations73
US5925503AJul 20, 1999
Photographic element having improved magenta dye light stability and process for its use
EASTMAN KODAK CO13 citations73
US5629140AMay 13, 1997
Photographic elements containing scavengers for oxidized developing agent
EASTMAN KODAK CO9 citations73
US5283340AFeb 1, 1994
Photographic material and process comprising wash-out naphtholic coupler
EASTMAN KODAK CO6 citations73
US5413905AMay 9, 1995
Photographic sensitivity increasing alkynylamine compounds and photographic elements
EASTMAN KODAK CO10 citations72
US5021325AJun 4, 1991
Photographic material and process comprising a pyrazolotriazole coupler
EASTMAN KODAK CO4 citations63
US4990430AFeb 5, 1991
Process for retouching dye images
EASTMAN KODAK CO6 citations63
US4948722AAug 14, 1990
Photographic material and process comprising a pyrazoloazole dye-forming coupler
EASTMAN KODAK CO2 citations63
US7632632B1Dec 15, 2009
Color photographic materials with magenta minimum density dyes
EASTMAN KODAK CO4 citations62
US6296997B1Oct 2, 2001
Photographic element and compound and process useful therewith
EASTMAN KODAK CO4 citations62
US6190852B1Feb 20, 2001
Photographic element containing nitrogen heterocycle substituted cyan coupler and process
EASTMAN KODAK CO2 citations62
US5344753ASep 6, 1994
Dry analytical element and method for the detection of an aminopeptidase or transpeptidase
EASTMAN KODAK CO2 citations62
US5380633AJan 10, 1995
Image information in color reversal materials using weak and strong inhibitors
EASTMAN KODAK CO5 citations61
US5158865AOct 27, 1992
Photographic elements containing removable filter dye
EASTMAN KODAK CO2 citations60
US5118594AJun 2, 1992
Photographic elements containing removable couplers
EASTMAN KODAK CO3 citations59
US5051343ASep 24, 1991
Photographic elements containing removable couplers
EASTMAN KODAK CO6 citations59
US6096493AAug 1, 2000
Magenta and yellow coupler combination in silver halide photographic element
EASTMAN KODAK CO1 citations52
US5994048ANov 30, 1999
Photographic element with particular magenta coupler
EASTMAN KODAK CO0 citations52
US5976777ANov 2, 1999
Photographic element containing magenta coupler with particular substituent
EASTMAN KODAK CO1 citations52
US5543277AAug 6, 1996
Photographic elements containing scavengers for oxidized developing agent
EASTMAN KODAK CO1 citations52
US5110942AMay 5, 1992
Dye derived from a pyrazolotriazole
EASTMAN KODAK CO0 citations52
US5296337AMar 22, 1994
Process for retouching photographic images containing a dye having a cleavable ballast
EASTMAN KODAK CO0 citations50
US6657066B1Dec 2, 2003
Synthesis of certain triazole compounds
EASTMAN KODAK CO0 citations48
US5534401AJul 9, 1996
Retouchable reversal silver halide photographic element with a pyrazoloazole magenta dye-forming coupler
EASTMAN KODAK CO0 citations48
US7175975B2Feb 13, 2007
Photographic material with improved development inhibitor releases
EASTMAN KODAK CO1 citations46