Patents by Inventor Gregory James Lestina

Gregory James Lestina 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).

  • Oxichromic compounds, stabilized oxichromic compounds and processes for preparing same
    Patent number: 3935262
    Abstract: Oxichromic compounds which contain a reduced azomethine linkage are disclosed with processes for making same. In one aspect, the oxichromic compounds are N-stabilized compounds which have an acyl stabilizing group on the nitrogen atom of the reduced azomethine linkage. The compounds undergo chromogenic oxidation to produce dyes.
    Type: Grant
    Filed: September 27, 1973
    Date of Patent: January 27, 1976
    Assignee: Eastman Kodak Company
    Inventors: Gregory James Lestina, Walter Monroe Bush
  • Oxichromic compounds, stabilized oxichromic compounds and processes for preparing same
    Patent number: 3935263
    Abstract: Oxichromic compounds which contain a reduced azomethine linkage are disclosed with processes for making same. In one aspect, the oxichromic compounds are N-stabilized compounds which have an acyl stabilizing group on the nitrogen atom of the reduced azomethine linkage. The compounds undergo chromogenic oxidation to produce dyes.
    Type: Grant
    Filed: December 19, 1973
    Date of Patent: January 27, 1976
    Assignee: Eastman Kodak Company
    Inventors: Gregory James Lestina, Walter Monroe Bush