Patents Assigned to Headwaters Research de Development, Inc.
  • Portable digital sound relaxation system
    Patent number: D408312
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: April 20, 1999
    Assignee: Headwaters Research de Development, Inc.
    Inventors: Michael Georges Sirois, Stefane Erhard Barbeau, Rudy Anthony Vandenbelt