Patents by Inventor Douglas H. Chin

Douglas H. Chin 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).

  • Triple extruded frame profiles and method of producing same
    Patent number: 5965075
    Abstract: A method is provided for triple extrusion of a foam material, a coating and one or more flexible flanges attached to the coating or foam material. All three materials are coextruded through a common die and are useful for forming window sashes.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: October 12, 1999
    Assignee: Marley Mouldings Inc.
    Inventors: Robert Pauley, Noel E. King, Douglas H. Chin
  • Method and die for forming triple extruded profiles
    Patent number: 5795641
    Abstract: A method is provided for triple extrusion of a foam material, a coating and one or more flexible flanges attached to the coating or foam material. All three materials are coextruded through a common die and are useful for forming window sashes.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: August 18, 1998
    Assignee: Marley Mouldings Inc.
    Inventors: Robert Pauley, Noel E. King, Douglas H. Chin
  • Triple extruded frame profiles
    Patent number: 5538777
    Abstract: A method is provided for triple extrusion of a foam material, a coating and one or more flexible flanges attached to the coating or foam material. All three materials are coextruded through a common die and are useful for forming window sashes.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: July 23, 1996
    Assignee: Marley Mouldings Inc.
    Inventors: Robert E. Pauley, Noel E. King, Douglas H. Chin