Patents by Inventor Gregory L. Corrigan

Gregory L. Corrigan 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).

  • Hood for use in hair and scalp treatment
    Patent number: D341905
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: November 30, 1993
    Assignee: 314613 B.C. Ltd.
    Inventors: Barry J. Marshall, Gregory L. Corrigan
  • Combined chair and electrical hood
    Patent number: D342165
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: December 14, 1993
    Assignee: 314613 B.C. Ltd.
    Inventors: Barry J. Marshall, Gregory L. Corrigan