Patents by Inventor David Patrick Townsend

David Patrick Townsend 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).

  • Handheld electronic device
    Patent number: D612849
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: March 30, 2010
    Assignee: Research in Motion Limited
    Inventors: Marco Sixtus Ferrari, Min Zhu, Roman Peter Rak, David Patrick Townsend, Todd Andrew Wood
  • Handheld electronic device
    Patent number: D613740
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: April 13, 2010
    Assignee: Research In Motion Limited
    Inventors: Marco Sixtus Ferrari, Min Zhu, Roman Peter Rak, David Patrick Townsend, Todd Andrew Wood
  • Handheld electronic device
    Patent number: D618236
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: June 22, 2010
    Assignee: Research In Motion Limited
    Inventors: Marco Sixtus Ferrari, Min Zhu, Roman Peter Rak, David Patrick Townsend, Todd Andrew Wood
  • Handheld electronic device
    Patent number: D630208
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: January 4, 2011
    Assignee: Research In Motion Limited
    Inventors: Marco Sixtus Ferrari, Min Zhu, Roman Peter Rak, David Patrick Townsend, Todd Andrew Wood
  • Handheld electronic device
    Patent number: D641359
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: July 12, 2011
    Assignee: Research In Motion Limited
    Inventors: Marco Sixtus Ferrari, Min Zhu, Roman Peter Rak, David Patrick Townsend, Todd Andrew Wood