Patents by Inventor Robert R. Gerlits

Robert R. Gerlits 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).

  • Communication system having abbreviated dialing access
    Patent number: 4600812
    Abstract: In private PBX communication systems the number of dialing digits required to establish a connection between stations at different PBXs of the system includes PBX location code digits and station address digits. Abbreviated dialing is accomplished by using one or more digits of the PBX location code as both location code digits as well as part of the digits which comprise the station address.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: July 15, 1986
    Assignee: AT&T Information Systems Inc.
    Inventor: Robert R. Gerlits