Patents by Inventor Neil Craig Silverman

Neil Craig Silverman 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).

  • Polyurethane foams with fine cell size
    Patent number: 6716890
    Abstract: Polyurethane foams formed using a specific mixture of polyether and graft polyols with toluene diisocyanate have fine cell size (over 70 pores per inch) and higher durability with IFD25 retention over 70% after 12,000 cycles of roll-shear. The foam-forming ingredients are mixed together and foamed at controlled pressures in the range 1.0 to 1.5 (absolute), preferably 1.05 to 1.5 bar (absolute). The foams make particularly good carpet cushions.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: April 6, 2004
    Assignee: Foamex L.P.
    Inventors: Beat Niederoest, Chiu Y. Chan, Neil Craig Silverman