Patents by Inventor Jonathan C. Knowles

Jonathan C. Knowles 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 testing corrugated medium
    Patent number: 5048347
    Abstract: The invention involves a method for testing corrugated materials, in particular, boxboard. The test involves securing a sample horizontally between jaws having a mating corrugated gripping surface profile.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: September 17, 1991
    Assignee: Georgia-Pacific Corporation
    Inventor: Jonathan C. Knowles