Patents by Inventor Wendell L. Lengefeld

Wendell L. Lengefeld 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).

  • Computer controlled material handling
    Patent number: 4837704
    Abstract: Apparatus and a method are disclosed for use in a computer controlled factory environment which includes workstations and automated vehicles servicing those workstations for monitoring the status of a plurality of system devices and reporting same, on demand, to the control computer in a predetermined sequence manner which minimizes control computer involvement in polling and buffering operations and optimizes vehicle movement.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: June 6, 1989
    Assignee: International Business Machines Corporation
    Inventor: Wendell L. Lengefeld