Patents by Inventor Larry L. Crabtree

Larry L. Crabtree 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).

  • Method of preferentially removing oxygen from ozonated water
    Patent number: 4900336
    Abstract: Ozonated water may desirably have the concentration of oxygen present reduced by agitating the water at less than atmospheric pressure to remove dissolved gases. Substantially more oxygen may be removed from the water than ozone by this technique, to provide a product water which has advantages of use in electronic manufacturing operations.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: February 13, 1990
    Assignee: Arrowhead Industrial Water, Inc.
    Inventors: Gregory A. Pittner, Larry L. Crabtree