Patents by Inventor Jane B. Walton

Jane B. Walton 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 of transactional taxation using secure stored data devices
    Patent number: 6078898
    Abstract: A system for transactional taxation includes a secure stored data device, such as a smart card, having means for storing purchaser-specific data, an interface device for communicating with the secure stored data device and means for determining a tax rate on a purchase using the purchaser-specific data.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: June 20, 2000
    Assignee: Schlumberger Technologies, Inc.
    Inventors: Robert R. Davis, Jane B. Walton
  • System and method of tracking continuing education information using secure stored data devices
    Patent number: 6073841
    Abstract: A system for tracking continuing education includes a secure stored data device, such as a smart card, storing practitioner-specific data, and a read/write device for communicating with the secure stored data device and for writing course attendance information for the practitioner to the secure stored data device. A professional education server initiates the secure stored data device and the read/write device, accepts data from the secure stored data device and the read/write device, verifies compliance with education requirements and verifies consistency in the data sets.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: June 13, 2000
    Assignee: Schlumberger Technologies, Inc.
    Inventor: Jane B. Walton