Patents by Inventor Michael Langlois

Michael Langlois 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).

  • Telephone set
    Patent number: D345159
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: March 15, 1994
    Assignee: Mitel Corporation
    Inventor: Michael Langlois
  • Telephone handset
    Patent number: D393645
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: April 21, 1998
    Assignee: Mitel Corporation
    Inventors: Michael Langlois, David A. Nogas