Patents by Inventor Dilip K. Subramanyam

Dilip K. Subramanyam 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).

  • Manganese steel
    Patent number: 4612067
    Abstract: Austenitic (Hadfield) manganese steel containing about 25% manganese, 1.4% carbon and 0.1 to 1% silicon, balance essentially iron.
    Type: Grant
    Filed: May 21, 1985
    Date of Patent: September 16, 1986
    Assignee: Abex Corporation
    Inventors: Hugo R. Larson, Dilip K. Subramanyam
  • Austenitic-manganese steel
    Patent number: 4425169
    Abstract: Fine grained austenite achieved in (12%) manganese steel, without annealing, by a novel combination of carbon and aluminum.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: January 10, 1984
    Assignee: Abex Corporation
    Inventors: Dilip K. Subramanyam, Henry J. Chapin, Bruce A. Heyer