Patents by Inventor David C. Crook

David C. Crook 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: D336826
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: June 29, 1993
    Inventor: David C. Crook