Patents by Inventor Michael C. Stephan

Michael C. Stephan 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: 5918753
    Abstract: A lightweight blow-molded plastic container providing enhanced top loading capability. The container is rectangular in elevation and plan, and has four vertically extending post corners at the juncture of front, back and side walls. The front and back walls have label mounting areas defined by upper and lower label bumpers. The bumpers extend horizontally and terminate a spaced distance from the side walls, thus allowing the vertical corners of the container to extend uninterrupted and provide maximum post strength to the container. The configuration is capable of being made from a reduced amount of plastic, yet provides enhanced top loading capability as compared with like-sized known container configurations.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: July 6, 1999
    Assignee: Graham Packaging Corporation
    Inventors: Richard Ogg, Michael C. Stephan
  • Patent number: D439519
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: March 27, 2001
    Assignee: Ashland Inc.
    Inventors: Steven B. Ruble, Doug Zalla, Michael C. Stephan, Sheldon Yourist