Patents by Inventor W. James Berry, III

W. James Berry, III 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).

  • Water purification unit and method
    Patent number: 4280912
    Abstract: The present invention consists of apparatus for purifying water in a continuous manner which removes suspended, dissolved and organic matter and provides water with a neutral pH and having a minimum electrical resistance of 18 Meg ohms for applications requiring ultra-pure water for research and commercial applications.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: July 28, 1981
    Assignee: Darco Water Systems, Inc.
    Inventors: W. James Berry, III, William J. Berry