Patents by Inventor Eberhard H. Neumann

Eberhard H. Neumann 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).

  • Method of manufacture of plastic article possessing a wet appearance
    Patent number: 4519975
    Abstract: Plastic articles possessing a "wet" appearance, and a method for their manufacture, are disclosed. The "wet" appearance is achieved by injection of water in a parison prior to or simultaneous with expansion of said parison in an otherwise conventional blow molding operation.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: May 28, 1985
    Assignee: American Hoechst Corporation
    Inventor: Eberhard H. Neumann