Patents by Inventor Mark R. Blackford

Mark R. Blackford 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).

  • Hand held sprayer
    Patent number: D337811
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: July 27, 1993
    Assignee: Modern Faucet Mfg. Co.
    Inventors: Harold J. Valley, Mark R. Blackford