Patents by Inventor Kenneth D. Premack

Kenneth D. Premack 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).

  • Cleaning brush
    Patent number: D325472
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: April 21, 1992
    Inventor: Kenneth D. Premack