Patents by Inventor A. John Boucek

A. John Boucek 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).

  • Method of making a high-strength low-alloy hot rolled steel
    Patent number: 6488790
    Abstract: A method of making a high-strength low-alloy (HSLA) hot rolled steel. A high-strength low-alloy steel is made by hot rolling a steel slab of a specified composition. The hot rolling step is carried out at an austenitic hot roll finishing temperature. The hot rolled steel is coiled at a temperature ranging from 1120° F. to 1180° F. The steel is characterized by a yield strength of at least 110 ksi. The steel may be further characterized by a ferrite-bainite microstructure.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: December 3, 2002
    Assignee: International Steel Group Inc.
    Inventors: John E. Hartmann, R. Devesh K. Misra, A. John Boucek