Patents by Inventor Jeffrey D. Case

Jeffrey D. Case 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).

  • Method for secure key production
    Patent number: 5720034
    Abstract: A method for exchanging a secure slave key between an agent and a manager which are connected by an unsecured digital computer network. A master key is provided, which is known to both the manager and the agent. The manager sends a request for an unpredictable number across the digital computer network to the agent. The agent receives the request and generates the unpredictable number, which is sent back to the manager across the digital computer network. The manager receives the unpredictable number, and uses it and the master key to produce a slave key. The agent likewise uses the unpredictable number and the master key to produce the slave key. In this manner, identical slave keys have been produced at both of the manager and the agent sites, without having to send the slave key across the unsecured digital computer network.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: February 17, 1998
    Inventor: Jeffrey D. Case
  • Kitchen appliance with two-dimensional applied surface graphic
    Patent number: D1016866
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: March 5, 2024
    Assignee: WHIRLPOOL CORPORATION
    Inventors: Kevin D. Case, Patrick John McCann, Jessica R. McConnell, Tracy L. Rock, Jeffrey M. Parmerlee