Patents by Inventor Timothy P. Griffin

Timothy P. Griffin 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).

  • Ultraviolet C light guides
    Patent number: 11940651
    Abstract: A light guide comprising a polymeric layer at least 25 percent transmissive over at least a 30 nm bandwidth in a wavelength range from 180 to 280 nm over a distance of at least 100 micrometers and visible light transparent reflecting layers (UV-C mirror) that are at least 50 percent reflective over at least 30 nm bandwidth in a wavelength range from 180 to 280 nm over an incident light angle of 0 to 90 degrees and that are at least 25 percent transmissive of visible light over at least 30 nm bandwidth in a wavelength range of 400 to 800 nm over an incident light angle of 0 to 90 degrees. The light guide is useful, for example, for antimicrobial surfaces.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: March 26, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Timothy J. Hebrink, Stephen P. Maki, Michael E. Griffin, Anna C. Hamlin, Justin M. Mazzoni, Christopher A. Merton, Matthew T. Scholz
  • Heat resistant paper interleaver for sheet metal
    Patent number: 5948357
    Abstract: The present invention relates to paper interleavers for sheet metal and, in particular, to a paper interleaver containing catalytically crosslinked polysiloxane capable of withstanding temperatures approaching 200.degree. C. for prolonged periods of time.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: September 7, 1999
    Assignee: International Paper Company
    Inventors: Kwong Y. Li, Fortunato Patane, Timothy P. Griffin, Gregory A. Unser, Marget C. Mann