Patents by Inventor Douglas George Johnson

Douglas George Johnson 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).

  • Laminator
    Patent number: D442980
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: May 29, 2001
    Assignee: D&K Laminex, Inc.
    Inventors: Douglas George Johnson, David Edward Humphries, Daniel Leland Bragg, Michael Herda, Timothy Rothwell