Patents by Inventor Stuart F. Laermer

Stuart F. Laermer 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).

  • Stabilizers for thermo plastic materials
    Patent number: 5308549
    Abstract: Stabilizing mixtures for a plastic material are disclosed. The mixture is comprised of (a) about one part by weight of a tocopherol compound; and (b) from about 1.4 to about 5.0 parts by weight of a secondary antioxidant.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: May 3, 1994
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Stuart F. Laermer, Vincent J. Rizzo