Patents by Inventor John W. Morris, Jr.

John W. Morris, Jr. 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).

  • Low Mn alloy steel for cryogenic service and method of preparation
    Patent number: 4257808
    Abstract: A ferritic cryogenic steel which has a relatively low (about 4-6%) manganese content and which has been made suitable for use at cryogenic temperatures by a thermal cycling treatment followed by a final tempering. The steel includes 4-6% manganese, 0.02-0.06% carbon, 0.1-0.4% molybdenum and 0-3% nickel.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: March 24, 1981
  • Ferritic Fe-Mn alloy for cryogenic applications
    Patent number: 4162158
    Abstract: A ferritic, nickel-free alloy steel composition, suitable for cryogenic applications, which consists essentially of about 10-13% manganese, 0.002-0.01% boron, 0.1-0.5% titanium, 0-0.05% aluminum, and the remainder iron and incidental impurities normally associated therewith.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: July 24, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Sun-Keun Hwang, John W. Morris, Jr.