TREA

Heterocyclic compounds

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Industry

  • CPC
  • G03C5/3028
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Parent Industries

GPHYSICS G03Photography G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHOTOGRAPHIC PROCESSES G03C5/00Photographic processes or agents therefor Regeneration of such processing agents

Current Industry

G03C5/3028Heterocyclic compounds
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Photographic silver halide developer composition and process for fo...
    • Patent number 5,998,110
    • Issue date Dec 7, 1999
    • Ferrania S.p.A.
    • Filippo Faranda
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Development processing method of ultrahigh-contrast black-and-white...
    • Patent number 5,798,204
    • Issue date Aug 25, 1998
    • Fuji Photo Film Co., Ltd.
    • Kouta Fukui
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing agents
    • Patent number 4,917,992
    • Issue date Apr 17, 1990
    • Ciba-Geigy AG
    • Malcolm D. Tirel
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Photographic developing agents containing stable, soluble, pyrazoli...
    • Patent number 4,753,869
    • Issue date Jun 28, 1988
    • Ciba-Geigy AG
    • William E. Long
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    3-pyrazolidinone salts
    • Patent number 4,732,981
    • Issue date Mar 22, 1988
    • Ciba-Geigy AG
    • Malcolm D. Tirel
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pyrazolidinone salts as developing agents
    • Patent number 4,687,846
    • Issue date Aug 18, 1987
    • Ciba-Geigy AG
    • Malcolm D. Tirel
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Benzotriazine compounds
    • Patent number 4,497,950
    • Issue date Feb 5, 1985
    • Polaroid Corporation
    • Emmett S. McCaskill
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Method of forming a photographic dye image
    • Patent number 4,481,268
    • Issue date Nov 6, 1984
    • Eastman Kodak Company
    • Joseph Bailey
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Novel benzotriazine developers and photographic product and method
    • Patent number 4,420,551
    • Issue date Dec 13, 1983
    • Polaroid Corporation
    • Emmett S. McCaskill
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Process for the production of photographic images and photographic...
    • Patent number 4,353,974
    • Issue date Oct 12, 1982
    • Ciba-Geigy AG
    • Terence C. Webb
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2,5-Bis(secondary amino) oxa- and thiadiazole photographic developi...
    • Patent number 4,093,462
    • Issue date Jun 6, 1978
    • Eastman Kodak Company
    • Henry Wolf Altland
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3829436
    • Patent number 3,829,436
    • Issue date Aug 13, 1974
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    3725068
    • Patent number 3,725,068
    • Issue date Apr 3, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3574621
    • Patent number 3,574,621
    • Issue date Apr 13, 1971
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3261685
    • Patent number 3,261,685
    • Issue date Jul 19, 1966
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3256282
    • Patent number 3,256,282
    • Issue date Jun 14, 1966
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3013018
    • Patent number 3,013,018
    • Issue date Dec 12, 1961
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    2875050
    • Patent number 2,875,050
    • Issue date Feb 24, 1959
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2801908
    • Patent number 2,801,908
    • Issue date Aug 6, 1957
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    2596978
    • Patent number 2,596,978
    • Issue date May 20, 1952
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2387751
    • Patent number 2,387,751
    • Issue date Oct 30, 1945
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    2333493
    • Patent number 2,333,493
    • Issue date Nov 2, 1943
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    2163781
    • Patent number 2,163,781
    • Issue date Jun 27, 1939
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2139870
    • Patent number 2,139,870
    • Issue date Dec 13, 1938
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY