Patents by Inventor C. I. Whitman

C. I. Whitman 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).

  • Maximizing the corrosion resistance of tin containing stainless steel powder compacts
    Patent number: 4314849
    Abstract: The corrosion resistance of stainless steel powder compacts containing tin and silicon is maximized if the compacts are sintered at temperatures in excess of 2300.degree. F. in highly reductive atmospheres until the ratio of Sn:Si on the surface of the compact is at least about 1:1. Stainless steel powders atomized in an oxidizing atmosphere and containing up to about 1 percent oxygen can be utilized.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: February 9, 1982
    Assignee: SCM Corporation
    Inventors: David H. Ro, Erhard Klar, C. I. Whitman