Patents by Inventor Robert E. V. Semos

Robert E. V. Semos 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).

  • Personal identification systems
    Patent number: 5606614
    Abstract: In personal identification systems which compare passwords in a verification computer to identify a user, successive passwords are generated, or retrieved from a stored list in the verification computer in response to each entry of a public username into the verification computer. A user device carried by the user retrieves the next successive password from a stored list in response to a command from the user and displays the password. The user then reads this password and offers it to the verification computer via a keyboard entry to be compared with the password already generated or retrieved in response to the username (the expected password).
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: February 25, 1997
    Assignee: British Telecommunications public limited company
    Inventors: Patrick S. Brady, Michael J. Kenning, David A. Roberts, Robert E. V. Semos, Mark J. Stirland, Richard B. Ward