Patents by Inventor Peter T. Wedepohl

Peter T. Wedepohl 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).

  • Stainless steel composition
    Patent number: 5395583
    Abstract: High chromium stainless steels having enhanced corrosion resistance are provided in which the steels have 25% to 35% by weight chromium; 0.1 to 5% by weight molybdenum; 0.1 to 6% by weight nickel; 0.0 to 4% by weight copper; 0.0 to 1% by weight titanium and/or niobium and/or vanadium; and, 0.02 to 5% by weight of a platinum group metal. The steels are particularly resistant to sulphuric and phosphoric acids.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: March 7, 1995
    Assignee: Mintek
    Inventors: Johannes H. Potgieter, Peter T. Wedepohl