Patents by Inventor Bruce Noel Hoppert

Bruce Noel Hoppert 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).

  • Recovery method for polyester still bottoms
    Patent number: 4013519
    Abstract: A recovery method by means of which an antimony compound is separated from polyester still bottoms. If desired, the method can be employed so as to recover in usable form, the antimony compound, and the monomers polymerized to produce the polyester.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: March 22, 1977
    Assignee: Safetech, Inc.
    Inventors: Bruce Noel Hoppert, Alfred Berghausen, III