Patents by Inventor Donald H. Mittendorf

Donald H. Mittendorf 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 for separating multilayer plastics into its components
    Patent number: 5183212
    Abstract: A novel process has been found wherein multilayer plastic materials are efficiently and effectively separated. The multilayer plastic materials are divided into smaller particles, the particles are agglomerated and then like particles are separated from the other particles. This novel method is useful for recycling multilayer extruded plastic materials.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: February 2, 1993
    Assignee: The B. F. Goodrich Company
    Inventors: H. Khim Boo, Donald H. Mittendorf, Walter A. Sell