Patents by Inventor Kirk T. Winn

Kirk T. Winn 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).

  • Six sigma calculator
    Patent number: 5731572
    Abstract: A slide rule permits rapid calculations of parameters used in the Six Sigma quality analysis program. For a given number of defects per product and a known number of parts per product (opportunities), the device permits rapid calculation of the number of defects per million opportunities as well as various statistical relationships, with a single movement of the slide.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: March 24, 1998
    Assignee: Hughes Electronics
    Inventor: Kirk T. Winn
  • Manual calculator
    Patent number: D383774
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: September 16, 1997
    Inventor: Kirk T. Winn