Patents by Inventor Jacob C. Krapowicz

Jacob C. Krapowicz 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).

  • Combination wrench
    Patent number: D299206
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: January 3, 1989
    Assignee: Easco Corporation
    Inventors: Jacob C. Krapowicz, William G. Mader
  • Ratchet wrench
    Patent number: D300296
    Type: Grant
    Filed: April 15, 1986
    Date of Patent: March 21, 1989
    Assignee: Easco Corporation
    Inventors: Jacob C. Krapowicz, William G. Mader