Patents by Inventor Perry D Lithgow

Perry D Lithgow 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).

  • Portion of headgear clip for a respiratory mask
    Patent number: D500706
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: January 11, 2005
    Assignee: ResMed Limited
    Inventors: Memduh Guney, Amal S Amarasinghe, Perry D Lithgow, Timothy Tsun-Fai Fu, Jim Saada, Gary C. Robinson
  • Cushion clip for mask assembly
    Patent number: D487510
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: March 9, 2004
    Assignee: Resmed Limited
    Inventors: Memduh Guney, Perry D Lithgow, Timothy Tsun-Fai Fu, Jim Saada
  • Portion of cushion clip for mask assembly
    Patent number: D493521
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: July 27, 2004
    Assignee: ResMed Limited
    Inventors: Memduh Guney, Perry D Lithgow, Timothy Tsun-Fai Fu, Jim Saada
  • Humidifier assembly
    Patent number: D498527
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: November 16, 2004
    Assignee: ResMed Limited
    Inventors: Alexander Virr, Mark Bertinetti, Andrew Cheung, Philip J Jenkinson, Perry D Lithgow, Susan R Lynch, John M Snow