Inventor
KRISHNAMURTHY SUNDARAM
US25 patents
⚠️ This page may combine multiple inventors who share the name “KRISHNAMURTHY SUNDARAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EASTMAN KODAK CO
24 patentsUS4540657ASep 10, 1985
Photographic coupler solvents and photographic elements employing same
EASTMAN KODAK CO43 citations92
US4853319AAug 1, 1989
Photographic silver halide element and process
EASTMAN KODAK CO36 citations91
US4740438AApr 26, 1988
Organic disulfides as image dye stabilizers
EASTMAN KODAK CO23 citations82
US5677118AOct 14, 1997
Photographic element containing a recrystallizable 5-pyrazolone photographic coupler
EASTMAN KODAK CO19 citations79
US5447830ASep 5, 1995
3-anilino pyrazolone magenta couplers and process
EASTMAN KODAK CO10 citations73
US4728599AMar 1, 1988
Sterically hindered phenolic ester photographic coupler dispersion addenda and photographic elements employing same
EASTMAN KODAK CO7 citations73
US4684606AAug 4, 1987
Sterically hindered photographic coupler solvents and photographic elements employing same
EASTMAN KODAK CO11 citations73
US5262292ANov 16, 1993
Photographic elements containing pyrazolone couplers and process
EASTMAN KODAK CO12 citations72
US5605787AFeb 25, 1997
3-anilino pyrazolone magenta couplers and process
EASTMAN KODAK CO4 citations62
US5399467AMar 21, 1995
Photographic couplers having a ballast containing a sulfone or sulfoxide group
EASTMAN KODAK CO3 citations62
US5378587AJan 3, 1995
Photographic material and process comprising a bicyclic pyrazolo coupler
EASTMAN KODAK CO2 citations62
US5359065AOct 25, 1994
Method of preparation of organosilyl substituted aromatic or heteroaromatic compounds
EASTMAN KODAK CO3 citations62
US5234805AAug 10, 1993
Photographic material and process comprising a pyrazolotriazole coupler
EASTMAN KODAK CO4 citations62
US4827019AMay 2, 1989
Sterically hindered aromatic carboxylic esters
EASTMAN KODAK CO2 citations62
US5318884AJun 7, 1994
Photographic silver halide material containing a coupler having a coupling-off group comprising a carbocyclic or heterocyclic ring having a silyl substituent directly attached thereto
EASTMAN KODAK CO0 citations52
US5306604AApr 26, 1994
Photographic silver halide material containing a coupler having in a non-coupling position in a silyl substituent
EASTMAN KODAK CO0 citations52
US5250400AOct 5, 1993
Photographic material and process comprising a pyrazolotriazole coupler
EASTMAN KODAK CO1 citations52
US5543276AAug 6, 1996
Color photographic element containing new epoxy scavengers for residual magenta coupler
EASTMAN KODAK CO1 citations51
US5508147AApr 16, 1996
Color photographic element with improved resistance to thermal and photochemical yellowing and method thereof
EASTMAN KODAK CO1 citations48
US5476756ADec 19, 1995
Color photographic element with improved resistance to thermal and photochemical yellowing
EASTMAN KODAK CO1 citations48
US5627017AMay 6, 1997
Low melting point ionizable epoxy scavengers for residual magenta couplers
EASTMAN KODAK CO0 citations41
US5571926ANov 5, 1996
One-step process for preparation of N-(4-substituted pyrazolyl) amidines as intermediates in PT-coupler synthesis
EASTMAN KODAK CO0 citations41
US5434040AJul 18, 1995
Photographic elements containing particular color couplers in combination with metal complex stabilizers
EASTMAN KODAK CO0 citations41
US5695921ADec 9, 1997
Photographic elements with magenta dye forming couplers and stabilizers
EASTMAN KODAK CO0 citations38