Patents by Inventor Dewey A. Frech

Dewey A. Frech 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).

  • Call appearance reservation arrangement
    Patent number: 4907259
    Abstract: A call appearance reservation arrangement where any number of the call appearances of a directory number are reservable, and where a reservation type is defined for the directory number such that calls to and from the reserved call appearances are processed in accordance with one of a number of possible reservation types, such types for example including: (1) origination only, (2) termination only, and (3) origination and priority termination only.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: March 6, 1990
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventor: Dewey A. Frech