Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Photographic elements containing new cyan dye-forming coupler providing improved color reproduction

Photographic elements containing new cyan dye-forming coupler providing improved color reproduction

US Patent 5674666 · Granted Oct 7, 1997

Estimated economic value: $6,547,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Color photographic element containing coupler useful for forming neutral silver-2002
Formulations for dyeing keratin fibers comprising a pyrazolotriazole coupler and2001
Pyrazolotriazle dye-forming photographic coupler2000
Photographic element containing a cyclic azole coupler and an anti-fading agent 2000
Photographic element2000
Photographic element containing pyrazoloazole coupler and a specific anti-fading2000
Photographic element containing pyrazoloazole coupler and a specific anti-fading2000
Photographic element containing specific magenta coupler2000
Photographic element containing pyrazoloazole coupler and a specific anti-fading2000
Photographic element containing pyrazoloazole coupler and a specific anti-fading2000
Photographic element containing pyrazoloazole coupler and a specific anti-fading2000
Photographic yellow dye-forming couplers2000