Patents by Inventor Chester C. Swasey

Chester C. Swasey 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).

  • Additive blends for polymeric materials
    Patent number: 4442017
    Abstract: Additives, such as stabilizers, antioxidants, antistatic agents etc., are intimately blended with an irradiation-responsive substance, such as an optical brightener, and incorporated in a thermoplastic polymeric material which is then subjected to irradiation to determine the degree of uniformity of distribution of the additive-brightener blend.
    Type: Grant
    Filed: August 24, 1982
    Date of Patent: April 10, 1984
    Assignee: Sandoz, Inc.
    Inventors: Morris Blumberg, Chester C. Swasey
  • Method of incorporating additives in polymeric materials
    Patent number: 4238384
    Abstract: Additives, such as stabilizers, antioxidants, anti-static agents etc., are intimately blended with an irradiation-responsive substance, such as an optical brightener, and incorporated in a thermoplastic polymeric material which is then subjected to irradiation to determine the degree of uniformity of distribution of the additive-brightener blend.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: December 9, 1980
    Assignee: Sandoz, Inc.
    Inventors: Morris Blumberg, Chester C. Swasey