Patents by Inventor Peter F. Lawrence

Peter F. Lawrence 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).

  • Loudspeaker
    Patent number: D569844
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: May 27, 2008
    Assignee: Martin Audio Limited
    Inventors: Ambrose C. T. Thompson, Peter F. Lawrence
  • Loudspeaker
    Patent number: D641006
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: July 5, 2011
    Assignee: Martin Audio Ltd.
    Inventors: Philip J. Anthony, Peter F. Lawrence, Jason D. Baird, Christopher J. Stokes
  • Loudspeaker
    Patent number: D727292
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: April 21, 2015
    Assignee: Martin Audio Ltd
    Inventors: Philip J. Anthony, Peter F. Lawrence, Jason D. Baird
  • Loudspeaker
    Patent number: D767541
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: September 27, 2016
    Assignee: Martin Audio Limited
    Inventors: Jason D. Baird, Peter F. Lawrence
  • Loudspeaker
    Patent number: D776086
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: January 10, 2017
    Assignee: Martin Audio Limited
    Inventors: Jason D. Baird, Peter F. Lawrence