Patents by Inventor Ross Lyndon-James

Ross Lyndon-James 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).

  • Timepiece communication system
    Patent number: 4800543
    Abstract: A wristwatch contains communication and memory circuitry and a transmitter. The memory circuit stores a personal identification number of a single user. The communication and memory circuitry is driven by the same battery which powers the timekeeping structure of the watch. A transmitter transmits data from the reader to the wristwatch, placed proximate thereto. The reader has a keypad by which the user can enter a personal identification number, and the watch compares the transmitted number to the user-entered number. If the numbers match, a transaction may occur.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: January 24, 1989
    Assignee: Ramtron Corporation
    Inventors: Ross Lyndon-James, Alfred P. Gnadinger, Donald L. Black, Carlos P. de Araujo