Patents Represented by Law Firm Michael Best & Fredrickson LLP
  • Laminated visco-elastic support
    Patent number: 6159574
    Abstract: A laminated support for pressure-relief including an upper layer of visco-elastic foam, a middle layer of visco-elastic foam having a greater hardness, and a bottom layer of highly resilient polyurethane foam. These layers are sandwiched between two layers of reticulated filter polyurethane foam.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 12, 2000
    Assignee: Fagerdala World Foams AB
    Inventors: Dag Landvik, Michael B. Allaway