Patents by Inventor William T. Matern

William T. Matern 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).

  • Private branch exchange system and methods for operating same
    Patent number: 5592473
    Abstract: A digital private branch exchange system and methods of operating same are provided. A system is capable of providing improved and integrated conferece calling, voice mail, music on hold, and call forwarding features, without being subject to the typical problems associated with the prior art.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: January 7, 1997
    Assignee: Newton Communications, Inc.
    Inventors: William T. Matern, Amy K. Leach
  • Private branch exchange system and methods for operating same
    Patent number: 5313459
    Abstract: A digital private branch exchange system and methods of operating same are provided. A system according to the instant invention is capable of providing improved and integrated conference calling, voice mail, music on hold, and call forwarding features, without being subject to the typical problems associated with the prior art.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: May 17, 1994
    Assignee: Newton Communications, Inc.
    Inventor: William T. Matern