Patents by Inventor Mark Heiden

Mark Heiden 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).

  • Thermoformable polypropylene-based sheet
    Patent number: 5310584
    Abstract: The invention provides a thermoformable sheet comprising a resinous polymer of propylene and an effective amount of a beta-spherulite nucleating agent, a process for making the sheet and articles thermoformed from the sheet.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: May 10, 1994
    Assignee: Amoco Corporation
    Inventors: Philip Jacoby, Jesse Wu, Mark Heiden