Patents by Inventor Hans K. Keipert

Hans K. Keipert 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).

  • Public fax services and system
    Patent number: 5621539
    Abstract: A public facsimile machine is arranged so that it will only receive an incoming facsimile if the facsimile is preceded by a predetermined security code. In addition, the public facsimile machine is associated with an enhanced facsimile service so that the capabilities provided by such a service, for example, broadcasting a facsimile to a plurality of destinations, may be offered to a user of the public facsimile machine.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: April 15, 1997
    Assignee: AT&T
    Inventors: David A. Brown, Nasrin Hoque, Hans K. Keipert, Fred Remite, Jr., Frank S. Simone, Bruce D. Wycherley