Patents by Inventor Robert J. Schreib

Robert J. Schreib 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).

  • System and method for controlling usage of software on computing devices
    Patent number: 7216238
    Abstract: Described is a method and system for controlling usage of software on a computing device. An authorization key is generated as a function of a device string and a software string. The device string is a unique string stored in the device. The software string is a unique string stored in a software authorized for use on the device. The authorization key is encrypted using a private key and stored in the device. Upon a request to use software on the device, the authorization key is decrypted using a public key corresponding to the private key. A test key is generated as a function of the device string and a request software string. The request software string is a unique string stored in the software for which use has been requested. The authorization key is compared to the test key. When the test key matches the authorization key, usage of the software for which use has been requested on the device is permitted.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: May 8, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Allan Herrod, Alan J. Epshteyn, Robert J. Schreib