Patents by Inventor John D. Dunham

John D. Dunham 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).

  • Patent number: 7456245
    Abstract: This invention relates to materials which absorb and dissipate energy and/or selectively allow energy to be transmitted, methods of making same, and articles comprising such materials. In particular, polymeric materials which include polyol(s) such as, but not limited to, polyethers, polyesters, polyether/esters, acrylics, and combinations thereof, plus other formulary components such as hydroxyl-terminated polybutadienes, polyisocyanates, silicone, preferably RTV (room temperature vulcanizing) silicone, and, preferably, suitable catalysts, preferably organometallic catalysts such as DBTDL (dibutyl tin dilaurate). Included are such polymeric materials which are resilient and which resist compression and compression set while exhibiting energy absorbing properties. Optionally, additives may be functionally or cosmetically added.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: November 25, 2008
    Assignee: Battelle Memorial Institute
    Inventors: John D. Dunham, Joan T. Muellerleile