Patents Assigned to Engineering Mechanics Corporation of Columbus
  • Thermoplastic composite lumber having reinforcing laminate of unidirectional fibers
    Patent number: 6749709
    Abstract: A thermoplastic composite lumber product having at least one layer of a reinforcing laminate containing unidirectional fibers of glass, carbon or ceramics. The thermoplastic composite lumber of the present invention exhibits superior stiffness and strength compared to typical, non-reinforced plastic lumber.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: June 15, 2004
    Assignee: Engineering Mechanics Corporation of Columbus
    Inventors: Prabhat Krishnawswamy, Duryodhan Mangaraj
  • Thermoplastic composite lumber having reinforcing laminate of unidirectional fibers
    Patent number: 6391456
    Abstract: A thermoplastic composite lumber product having at least one layer of a reinforcing laminate containing unidirectional fibers of glass, carbon or ceramics. The thermoplastic composite lumber of the present invention exhibits superior stiffness and strength compared to typical, non-reinforced plastic lumber.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: May 21, 2002
    Assignee: Engineering Mechanics Corporation of Columbus
    Inventors: Prabhat Krishnaswamy, Duryodhan Mangaraj