Patents by Inventor Joahnnes Petrian

Joahnnes Petrian 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: D374690
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: October 15, 1996
    Inventor: Joahnnes Petrian