Patents by Inventor Johnsy Varghese

Johnsy Varghese 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).

  • Cryptographic lock, method of operation thereof and secure container employing the same
    Patent number: 8907794
    Abstract: Various cryptographic locks for securing assets, secure containers and methods of operating a cryptographic lock. One embodiment of a cryptographic lock includes: (1) a shape memory alloy (SMA) having a first and second phase, wherein the first phase inhibits access to an asset and the second phase allows access to the asset and (2) an RFID transponder, coupled to the SMA, configured to receive an authentication signal from an RFID transceiver and, based thereon, energize the SMA to temporarily change the SMA from the first phase to the second phase.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: December 9, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Leonardo W. Estevez, Johnsy Varghese, Steven C. Lazar
  • CRYPTOGRAPHIC LOCK, METHOD OF OPERATION THEREOF AND SECURE CONTAINER EMPLOYING THE SAME
    Publication number: 20090322531
    Abstract: Various cryptographic locks for securing assets, secure containers and methods of operating a cryptographic lock. One embodiment of a cryptographic lock includes: (1) a shape memory alloy (SMA) having a first and second phase, wherein the first phase inhibits access to an asset and the second phase allows access to the asset and (2) an RFID transponder, coupled to the SMA, configured to receive an authentication signal from an RFID transceiver and, based thereon, energize the SMA to temporarily change the SMA from the first phase to the second phase.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 31, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Leonardo W. Estevez, Johnsy Varghese, Steven C. Lazar