Patents by Inventor Keith Richard Koenig

Keith Richard Koenig 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).

  • Dual bobbin mandrel
    Patent number: 6168110
    Abstract: An improved mandrel for use on a dual bobbin spindle apparatus, the mandrel being an expandable contractible cylindrical sleeve having a plurality of expansion members and at least one interstitial resilient member separating the expansion members, providing positive engagement of a plurality of reels or bobbins containing wound webs of flexible material.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: January 2, 2001
    Assignee: Philip Morris Management Corp.
    Inventors: William H. Stevens, Keith Richard Koenig, Robert Eugene Marcum