Patents by Inventor Steve S. C. Chan

Steve S. C. Chan 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).

  • Secured data storage devices
    Patent number: 5150407
    Abstract: A device for storing user data and a value representative of the time of storage is disclosed, which includes physically separating portions of an encryption key, combining a time stamp with user data, and using the restored encryption key to encrypt and decrypt the stamped user data.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: September 22, 1992
    Inventor: Steve S. C. Chan