Patents by Inventor John Birkett

John Birkett 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).

  • Oxime free anti-skinning combination
    Publication number: 20080250977
    Abstract: The present invention relates to an antiskinning composition containing an organic oxygen scavenger and at least one drying accelerator.
    Type: Application
    Filed: April 16, 2007
    Publication date: October 16, 2008
    Inventors: Andrew Mason, John Birkett, Paul Thomas
  • Dental cassette
    Patent number: D563561
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: March 4, 2008
    Assignee: Symmetry Medical, Inc.
    Inventors: Valentine T. Faust, III, Daniel L. Sands, John Birkett