Patents Assigned to Greenland Composites, Inc.
  • Four-way coupling
    Patent number: D632163
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: February 8, 2011
    Assignee: Greenland Composites, Inc.
    Inventor: Burt Hanna
  • Three-way coupling
    Patent number: D632551
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: February 15, 2011
    Assignee: Greenland Composites, Inc.
    Inventor: Burt Hanna
  • Corner coupling
    Patent number: D637476
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: May 10, 2011
    Assignee: Greenland Composites, Inc.
    Inventor: Burt Hanna