Patents by Inventor William Hartzel

William Hartzel 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).

  • Multilayer fluoropolymer films
    Patent number: 9044923
    Abstract: The invention relates to a multi-layer film having at least one fluoropolymer layer, useful for high-purity contact applications. Preferably the fluoropolymer layer(s) are polyvinylidene fluoride polymers and copolymers.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 2, 2015
    Assignee: Arkema Inc.
    Inventors: William Hartzel, Saeid Zerafati, Gregory S. O'Brien
  • Multilayer Fluoropolymer Films
    Publication number: 20080261050
    Abstract: The invention relates to a multi-layer film having at least one fluoropolymer layer, useful for high-purity contact applications. Preferably the fluoropolymer layer(s) are polyvinylidene fluoride polymers and copolymers.
    Type: Application
    Filed: December 20, 2006
    Publication date: October 23, 2008
    Applicant: Arkema Inc.
    Inventors: William Hartzel, Saeid Zerafati, Gregory S. O'Brien