Patents by Inventor Nicholas Shewchnenko

Nicholas Shewchnenko 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).

  • Safety helmet
    Patent number: D358905
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: May 30, 1995
    Inventors: David G. Stinson, James A. Newman, Nicholas Shewchnenko, Edmund A. Fournier, Christopher R. P. Withnall