Patents by Inventor Michel Challard

Michel Challard 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: D318539
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: July 23, 1991
    Inventor: Michel Challard