Patents by Inventor J. Robert Sroka

J. Robert Sroka 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).

  • Radio transceiver having fixed calling capacity
    Patent number: 5203009
    Abstract: A cellular phone having a fixed calling capacity limiting use of the phone to emergency situations. Two call sequences are stored in memory permitting telephonic communication with only the two fixed sites associated with the two call sequences. Telephonic communication must be effectuated with a first fixed site, and then terminated, prior to effectuation of telephonic communication with a second fixed site. Telephonic communication with a second fixed site is permitted during a predetermined, limited time period.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: April 13, 1993
    Assignee: Motorola, Inc.
    Inventors: Anthony J. Bogusz, J. Robert Sroka