Patents by Inventor Yasuhiro Koshido

Yasuhiro Koshido 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).

  • Broom head
    Patent number: D269649
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: July 12, 1983
    Assignee: The Drackett Company
    Inventors: David A. Jones, Yasuhiro Koshido, Daniel A. Maust