Patents by Inventor Peter J. Felfer

Peter J. Felfer 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).

  • Publication number: 20120186703
    Abstract: A nitrided steel product or thin cast steel strip comprising, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, niobium between 0.01 and about 0.20%, and between 0.01 and 0.075% nitrogen, and having a majority of the microstructure comprised of bainite and acicular ferrite, having more than 70% niobium in solid solution prior to nitriding and having after nitriding for one hour yield strength between 600 MPa and 800 MPa and tensile strength between 650 MPa and 900 MPa and no more than a 2% decrease in total elongation from the steel product prior to nitriding.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 26, 2012
    Applicant: NUCOR CORPORATION
    Inventors: Yuxuan Xie, Sachin L. Shrestha, Peter J. Felfer, Julie M. Cairney, Chris R. Killmore, Kristin R. Carpenter, Harold R. Kaul, Simon P. Ringer