Patents by Inventor Barton A. Thomson

Barton A. Thomson 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).

  • Manufacturing process for producing high strength steel product with improved formability
    Patent number: 7288158
    Abstract: A flat rolled, high strength, formable steel product has a yield strength of at least about 100 ksi. The product has sufficient formability such that it can withstand a longitudinal or transverse 180° bend of less than 1.0 times its thickness and is preferably comprised of a high strength, low alloy steel composition containing a vanadium-nitride microalloy. The steel product is preferably produced by cold rolling a first steel product having a yield strength of at least about 70 ksi and a n-value from about 0.1 to about 0.16. Cold rolling of the first steel product reduces its thickness and increases its yield strength to at least 100 ksi.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: October 30, 2007
    Assignee: Algoma Steel Inc.
    Inventors: Barton A. Thomson, James W. Johnston