Patents by Inventor Stephen Marsch

Stephen Marsch 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).

  • Medium/high carbon low alloy steel for warm/cold forming
    Patent number: 5928442
    Abstract: A medium/high carbon low alloy steel which can be cold formed by cold or warm forging and heat treated. The material consists essentially of:______________________________________ Element Weight Percent ______________________________________ Carbon (C) about 0.45-0.65 Manganese (Mn) about 0.35-0.45 Chromium (Cr) about 0.70-0.80 Nickel (Ni) about 0.35-0.50 Molybdenum (Mo) about 0.15-0.30 Titanium (Ti) about 0.01-0.02 Aluminum (Al) about 0.01-0.02 Silicon (Si) about 0.008-0.15 Boron (B) about 0.001-0.003 Iron (Fe) Balance Vanadium (V) Less than about 0.10 Oxygen (O) about 0.002-0.005 Nitrogen (N) about 0.001-0.008 Copper (Cu) Less than about 0.35 Zirconium (Zr) Less than about 0.01 Antimony (Sb) Less than about 0.01 Tin (Sn) Less than about 0.01 Sulfur (S) about 0.001-0.010 Phosphorus (P) about 0.001-0.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: July 27, 1999
    Assignee: Snap-On Technologies, Inc.
    Inventors: Paul M. Machmeier, Anthony M. Matuszewski, Stephen Marsch, William Walsh