Patents by Inventor Eric M. Focht

Eric M. Focht 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).

  • Ultra low carbon bainitic weathering steel
    Patent number: 6315946
    Abstract: An ultra-low carbon weathering steel has a carbon content of from about 0.015 wt % to about 0.035 wt %; a copper content of from about 0.20 wt % to about 0.40 wt %; a chromium content of from about 0.40 wt % to about 0.70 wt %; a nickel content of from about 0.20 wt % to about 0.50 wt %; a titanium content of from about 0.02 wt % to about 0.05 wt %; a niobium content of from about 0.03 wt % to about 0.06 wt %; a boron content of from about 0.0015 wt % to about 0.003 wt %; a manganese content of from about 2.0 wt % or less; a phosphorous content of from about 0.012 wt % or less; a sulphur content of from about 0.005 wt % or less; a silicon content of from about 0.40 wt % or less; a molybdenum content of from about 0.50 wt % or less; a vanadium content of from about 0.10 wt % or less; an aluminum content of from about 0.03 wt % or less; and a nitrogen content of from about 0.006 wt % or less.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: November 13, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Eric M. Focht