Patents by Inventor Steven Charles Birks

Steven Charles Birks 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).

  • STEEL, A WELDING CONSUMABLE, A CAST, FORGED OR WROUGHT PRODUCT, A METHOD OF WELDING, A WELDED PRODUCT AND A METHOD OF HEAT TREATING
    Publication number: 20190003023
    Abstract: A steel including, in mass %: 0.005 to 0.015% carbon; 0.05 to 0.35% silicon, 7.45 to 8.4% nickel; 1.00%> or less manganese; 0.025%> or less sulphur; 0.030%> or less phosphorous; 24.0 to 26.0% chromium; 0.50 to 1.00% copper; 3.0 to 4.0% C molybdenum; 0.002 to 0.010% niobium; 0.75% or less cobalt; 0.015% or less aluminium; 0.20 to 0.30% nitrogen; 0.50 to 0.85%) tungsten; the balance being iron and incidental impurities.
    Type: Application
    Filed: December 22, 2016
    Publication date: January 3, 2019
    Inventors: Richard Stanley Goodwin, Bernard Rafe Ernest Goodwin, Stephen Roberts, Steven Charles Birks