Patents by Inventor Kenn D. Walters

Kenn D. Walters 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).

  • Patent number: 5357573
    Abstract: Memory card as mass memory device for computer systems preventing unauthorized use of software stored on said memory card. In the memory card a non-changable and read-only protection code is stored indicative of the respective memory card and/or the computer system and/or the manufacturer of the software etc. A protection routine is added to the software program to be protected executing the protected software itself only if a comparison code within the protection routine matches with the non-changeable protection code.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: October 18, 1994
    Assignee: Intelligent Solution Services GmbH
    Inventor: Kenn D. Walters