Patents by Inventor Clayton N. Cowgill

Clayton N. Cowgill 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).

  • Personal audio player with a removable multi-function module
    Patent number: 6606281
    Abstract: A digital audio player has a removable and interchangeable multi-function module that has at least one operating member. The multi-function interchangeable module interoperates with the body of the digital audio player to provide a plurality of features, which include, but are not limited to, additional memory storage, radio tuner, display, Infrared transceiver and wireless transceiver.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: August 12, 2003
    Assignee: Digital Networks North America, Inc.
    Inventors: Clayton N. Cowgill, John Marshall, Phil Johnson, Michael Walters
  • Personal audio player with a removable multi-function module
    Publication number: 20020015362
    Abstract: A digital audio player has a removable and interchangeable multi-function module that has at least one operating member. The multi-function interchangeable module interoperates with the body of the digital audio player to provide a plurality of features, which include, but are not limited to, additional memory storage, radio tuner, display, Infrared transceiver and wireless transceiver.
    Type: Application
    Filed: June 14, 2001
    Publication date: February 7, 2002
    Inventors: Clayton N. Cowgill, John Marshall, Phil Johnson, Michael Walters