Patents by Inventor Richard A. Lacjak

Richard A. Lacjak 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).

  • Tundish lining
    Patent number: D262311
    Type: Grant
    Filed: August 16, 1979
    Date of Patent: December 15, 1981
    Assignee: Foseco Trading AG
    Inventors: Richard A. Lacjak, John A. Keitch
  • Tundish liner board
    Patent number: D270093
    Type: Grant
    Filed: August 16, 1979
    Date of Patent: August 9, 1983
    Assignee: Foseco Trading A.G.
    Inventors: Richard A. Lacjak, John A. Keitch