Patents by Inventor David W. Malcomber

David W. Malcomber 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