Patents by Inventor Harbhajan S. Rhandhawa

Harbhajan S. Rhandhawa 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).

  • Method for coated surgical instruments and tools
    Patent number: 4981756
    Abstract: A process for producing corrosion resistant and wear resistant medical tools and instruments by coating high strength low-carbon martensitic stainless steels with a thin, hard layer of refractory metal compound, preferably via cathodic arc plasma deposition technology. The invention also covers the coated medical tools produced via such process.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: January 1, 1991
    Assignee: Vac-Tec Systems, Inc.
    Inventor: Harbhajan S. Rhandhawa