Patents by Inventor Douglas Touissaint

Douglas Touissaint 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: D276494
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: November 27, 1984
    Assignee: Filtertek, Inc.
    Inventors: Polly Novak, Douglas Touissaint