Patents by Inventor William R. Sheffield

William R. Sheffield 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).

  • Drink bottle funnel
    Patent number: 8109399
    Abstract: A drink bottle funnel for attaching securely to a drink bottle to facilitate pouring flavoring into the drink bottle includes a main portion formed by a circumferential wall having a top opening and a bottom opening. A tubular connection portion extends from the main portion around the bottom opening. An interior surface of the connection portion has interior surface threads. Thus, the connection portion is designed for threadably engaging the threaded neck of a drink bottle.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: February 7, 2012
    Inventors: William R. Sheffield, Laura K. McBrayer-Sheffield