Patents by Inventor James F. Opeka

James F. Opeka 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).

  • Ladder leveler
    Patent number: D477672
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: July 22, 2003
    Inventor: James F. Opeka
  • Ladder stabilizer
    Patent number: D412210
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: July 20, 1999
    Inventor: James F. Opeka