Patents by Inventor Donald North

Donald North 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).

  • Wire suspension for speakers
    Patent number: 8155372
    Abstract: The present invention relates generally to a compact speaker with secondary wire suspension. The secondary suspension assembly is the speaker has a suspension assembly with preferably 3 wires which provide stability to reduce wobbling while maintaining linear excursion.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: April 10, 2012
    Inventor: Donald North
  • Wire suspension for speakers
    Publication number: 20080310669
    Abstract: The present invention relates generally to a compact speaker with secondary wire suspension. The secondary suspension assembly is the speaker has a suspension assembly with preferably 3 wires which provide stability to reduce wobbling while maintaining linear excursion.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Inventor: Donald North