Patents by Inventor Peter M. A. Sherwood

Peter M. A. Sherwood 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).

  • Patent number: 6066403
    Abstract: Novel metallic bodies are provided which present an essentially oxide-free surface protected by phosphate groups which directly and chemically bond to surface metal atoms. Metal surfaces such as Al or Fe can be protected by deposition of a phosphate film directly onto etched metal surfaces without intermediate naturally occurring oxides between the metal ions and protective phosphate groups. Preferably, metallic surfaces to be protected are first etched to remove oxides and other contaminants, followed by electrochemical treatment with a phosphate electrolyte to generate a protective film having a thickness of from about 20-100 .ANG. which is stable in ambient air.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: May 23, 2000
    Assignee: Kansas State University Research Foundation
    Inventors: Peter M. A. Sherwood, John A. Rotole