Patents by Inventor Terrance P. Smith

Terrance P. Smith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polymerizable metal-azo and metal-azomethine dyes
    Patent number: 5166326
    Abstract: Disclosed are metal-azo and metal-azomethine materials which are useful as monometric dyes which may be mordanted by polymerization. The inventive dyes contain a central metal; an azo containing ligand; and a ligand having a free-radically polymerizable group (not directly attached to the azo or azomethine containing ligand) bound to the metal, and optionally, a monodentate or bidentate ligand which satisfy the coordination requirements of the central metal. Also disclosed are homopolymers and copolymers of the metal-azo or metal azomethine dyes.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: November 24, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Terrance P. Smith, David W. Malcomber, Mohammed A. Elmastry
  • Thermal transfer imaging using sulfonylaminoanthraquinone dyes
    Patent number: 5061678
    Abstract: Alkylsulfonylamino- and arylsulfonylaminoanthraquinone dyes are useful for thermal dye transfer imaging, when employed in dye donor sheets. These dyes give images having excellent light and heat fastness.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 29, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Susan K. Jongewaard, Louis M. Leichter, Terrance P. Smith, Krzysztof A. Zaklika
  • Anthraquinone dyes having alkylsulfonylamino substituents
    Patent number: 5034547
    Abstract: New anthraquinone dyes, free of water-solubilizing groups such as --SO.sub.3 H and --CO.sub.2 H comprise anthraquinone substituted with one or more identical or different groups of the formula --NHSO.sub.2 R, wherein R is a substituted or unsubstituted linear, branched, cyclic or polycyclic alkyl group having up to 20 carbon atoms, and wherein the remaining nuclear aromatic carbon atoms of the anthraquinone may be substituted with substituents selected from the group: alkyl; the halogens F, Cl, and Br; cyano; nitro; aminosulfonyl; arylsulfonylamino; and --NHCOQ; wherein Q is hydrogen, an alkyl, an aryl, or a heterocyclic group.These dyes have improved solubility, lowered melting point, and possess outstanding resistance to light-induced fading.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: July 23, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Terrance P. Smith, Krzysztof A. Zaklika
  • Thermal transfer imaging using alkylcarbonylamino-anthraquinone dyes
    Patent number: 4988664
    Abstract: Alkycarbonylaminoanthraquinones are useful for thermal dye transfer imaging when employed in dye donor sheets. These give images having excellent light and heat fastness.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: January 29, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Terrance P. Smith, Krzysztof A. Zaklika, Susan K. Jongewaard, Louis M. Leichter
  • Thermal transfer imaging using sulfonylaminoanthraquinone dyes
    Patent number: 4977134
    Abstract: Alkylsulfonylamino- and arylsulfonylaminoanthraquinone dyes are useful for thermal dye transfer imaging, when employed in dye donor sheets. These dyes give images having excellent light and heat fastness.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: December 11, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Susan K. Jongewaard, Terrance P. Smith, Louis M. Leichter, Krzysztof A. Zaklika
  • Thermal dye transfer materials
    Patent number: 4857503
    Abstract: The use of eutectic combinations of a dye and a second compound (which may also be a dye) in a binder has been found to provide benefits to thermal dye transfer materials.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: August 15, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Susan K. Jongewaard, Terrance P. Smith, Krzysztof A. Zaklika