Patents by Inventor Andrew Gerard Hitzel

Andrew Gerard Hitzel 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).

  • Retortable, high oxygen barrier polymeric films
    Patent number: 5716715
    Abstract: A polymeric film having superior oxygen barrier properties comprising at least five layers with at least one exterior layer comprised of polyester, one exterior layer selected from the group consisting of a polyester, an aliphatic polyamide, and an aliphatic/aromatic polyamide, an interior layer of ethylene vinyl alcohol copolymer or a blend of an ethylene vinyl alcohol copolymer and an aliphatic/aromatic polyamide, and a modified polyolefin adhesive layer between each exterior layer and the interior layer.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: February 10, 1998
    Assignee: AlliedSignal Inc.
    Inventors: Alfieri Degrassi, James Ivan Fryer, Andrew Gerard Hitzel, Michael Stanley Matas
  • Retortable, high oxygen barrier polymeric films
    Patent number: 5707750
    Abstract: A polymeric film having superior oxygen barrier properties comprising at least five layers with two exterior layers independently selected from the group consisting of an aliphatic polyamide and an aliphatic/aromatic polyamide, an interior layer of ethylene vinyl alcohol copolymer or a blend of poly(m-xylylene adipamide) and ethylene vinyl alcohol copolymer, and a modified polyolefin adhesive layer between each exterior layer and the interior layer.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: January 13, 1998
    Assignee: AlliedSignal Inc.
    Inventors: Alfieri Degrassi, James Ivan Fryer, Andrew Gerard Hitzel, Michael Stanley Matas