Patents by Inventor Jeffrey W. Kunitzer

Jeffrey W. Kunitzer 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).

  • Carbon and alloy steels thermochemical treatments
    Patent number: 6235128
    Abstract: The present invention is a unique sequential process for treating carbon and alloy steels to improve resistance to tribological stresses while reducing conventional processing time required to obtain articles having a similar hardness. This process comprises carburizing or carbonitriding the article, tempering the carburized or carbonitrided article, net-shaping (machining) the tempered article, and plasma (ion) nitriding the tempered article for a significantly reduced period of time versus conventional plasma (ion) nitriding.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: May 22, 2001
    Inventors: John C. Chang, John Joseph Krieg, Richard Blanco Roe, Steve Stormzand, Tony Wu, Lynn Lu, Jeffrey W. Kunitzer