Patents by Inventor David Stuart Pritchard

David Stuart Pritchard 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).

  • Microphone
    Patent number: D529902
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: October 10, 2006
    Assignee: Motorola, Inc.
    Inventors: Peng Chung Tan, Wai Hoong Leng, David Stuart Pritchard, Mark F. Witczak
  • Combined speaker and microphone
    Patent number: D530313
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: October 17, 2006
    Assignee: Motorola, Inc.
    Inventors: Wai Hoong Leng, David Stuart Pritchard, Chin Sen Tang
  • Headset
    Patent number: D530702
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: October 24, 2006
    Assignee: Motorola, Inc.
    Inventors: David Stuart Pritchard, Peng Chung Tan
  • Microphone
    Patent number: D539272
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: March 27, 2007
    Assignee: Motorola, Inc.
    Inventors: Shirish M. Kaner, David Stuart Pritchard, Peng Chung Tan
  • Two way radio
    Patent number: D540765
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: April 17, 2007
    Assignee: Motorola, Inc.
    Inventors: David Stuart Pritchard, Bruce Claxton, Hor Weng Kong, Craig F. Siddoway
  • Handheld radio control head
    Patent number: D566075
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: April 8, 2008
    Assignee: Motorola, Inc.
    Inventors: Wai Hoong Leng, Teik Seng Ch'ng, David Stuart Pritchard
  • Radio communications device
    Patent number: D571780
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: June 24, 2008
    Assignee: Motorola, Inc.
    Inventors: Peng Chung Tan, David Stuart Pritchard, Sheridan Saidin