Patents by Inventor Cornel H. Petrassevich

Cornel H. Petrassevich 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).

  • Illuminated surgical instrument
    Patent number: 4337763
    Abstract: A medical implement and more particularly a surgical retractor or speculum having an improved functional configuration and further provided with means for illuminating the interior of a natural body cavity or a cavity formed by incision or a wound.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: July 6, 1982
    Assignee: The United States of America as represented by the Department of Health, Education and Welfare
    Inventor: Cornel H. Petrassevich