Patents by Inventor Richard James Dobrovich

Richard James Dobrovich 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).

  • Telephone call on hold service for a party placed on hold by another party
    Patent number: 5875231
    Abstract: An on hold telephony service that allows a party placed on hold, if he is a subscriber to the service, to also place the call on hold and then hang up. The on hold service can be implemented on a central office switch or an enhanced services platform connected to the switch. The on hold service is accessed by the party placed on hold, i.e., subscriber, through a transfer function that causes the call to be maintained by the on hold service. When the party who originally placed the call on hold returns to the call, the on hold service informs him that the service will then call the subscriber so that both parties can be reconnected.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: February 23, 1999
    Assignee: AG Communication Systems Corporation
    Inventors: Daniel Joseph Farfan, Richard James Dobrovich