Patents by Inventor Robert A. Volz, deceased

Robert A. Volz, deceased 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).

  • Very fine cell polyurethane foams and processes for producing the same
    Patent number: 6136878
    Abstract: The present invention relates to very fine cell flexible polyurethane foams having at least 87 pores per linear inch (as measured by pressure drop techniques) wherein at least 65% of the isocyanate equivalents of said polyurethane are obtained from MDI. The invention also relates to processes for preparing the very fine cell polyurethane foams.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: October 24, 2000
    Assignee: Foamex, L.P.
    Inventors: Sharon A. Free, David J. Kelly, Rocco P. Triolo, Robert A. Volz, deceased