Patents by Inventor Kenneth Doak

Kenneth Doak 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).

  • Clear impact resistant thermoplastic star-block copolymers
    Patent number: 4346198
    Abstract: The preparation of a branched, radial block copolymer having improved falling weight impact properties, and having monomodal distribution of molecular structure in the arms of the block copolymer is described.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: August 24, 1982
    Assignee: Atlantic Richfield Company
    Inventors: Kenneth Doak, Le-Khac Bi, Ralph Milkovich
  • Clear impact resistant thermoplastic star-block copolymers
    Patent number: 4248981
    Abstract: The preparation of a branched, radial block copolymer having improved falling weight impact properties, and having trimodal distribution of molecular structure in the arms of the block copolymer is described.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: February 3, 1981
    Assignee: ARCO Polymers, Inc.
    Inventors: Ralph Milkovich, Kenneth Doak, Le-Khac Bi