Patents by Inventor Dorothy Ness

Dorothy Ness 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).

  • Leak-resistant drinking systems
    Publication number: 20050242204
    Abstract: A leak-resistant drinking system is disclosed. The leak-resistant drinking system comprises squeeze-openable check valves for use with straws and cup lids, and tighteners to tighten the rim of a cup against the cup lid with expanding hygroscopic material.
    Type: Application
    Filed: April 28, 2005
    Publication date: November 3, 2005
    Inventors: Richard Ness, Dorothy Ness