Patents by Inventor Richard T. Spring

Richard T. Spring 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).

  • Polymeric absorber for laser-colorant transfer
    Patent number: 6051532
    Abstract: A colorant-donor element for thermal colorant transfer comprising a support having thereon a colorant layer having a laser radiation-absorbing material associated therewith, wherein the laser radiation-absorbing material comprises a polymer containing within its repeat units a laser radiation-absorbing chromophore comprising an organic moiety having a plurality of conjugated double bonds and an optical absorption of from about 400 to about 1200 nm, and wherein the organic moiety is capable of forming at least two covalent bonds to the polymer backbone.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: April 18, 2000
    Assignee: Eastman Kodak Company
    Inventors: Mitchell Burberry, Douglas R. Robello, Richard T. Spring, Glenn T. Pearce