Patents by Inventor Howard D. Koga

Howard D. Koga 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: D315012
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: February 26, 1991
    Inventor: Howard D. Koga