Patents by Inventor Robert William Karr

Robert William Karr 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).

  • Selectable radio frequency identification transponder
    Patent number: 12450448
    Abstract: The provided are a selectable multi-frequency radio frequency identification (RFID) transponder as well as a non-mechanical method to change an identification code of a selectable multi-frequency RFID transponder. The selectable multi-frequency RFID transponder includes a multi-frequency chip, a first antenna, and a second antenna. The method includes: connecting wirelessly the selectable multi-frequency RFID transponder; establishing a short range link between the selectable multi-frequency RFID transponder and a hand-held terminal; and changing the identification code of the selectable multi-frequency RFID transponder through a mobile application.
    Type: Grant
    Filed: July 5, 2024
    Date of Patent: October 21, 2025
    Assignee: STAR SYSTEMS INTERNATIONAL LIMITED
    Inventors: Robert William Karr, Tarun Ahlawat