Patents by Inventor Malcolm Butler

Malcolm Butler 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).

  • APPARATUS AND METHOD FOR PURIFYING WATER BY FORWARD OSMOSIS
    Publication number: 20100213129
    Abstract: A water purification apparatus comprising a semi-permeable membrane capable of being contacted with a water source; a superabsorbent polymer capable of absorbing water across said semi-permeable membrane; a pressure application surface capable of transmitting pressure to the gel; and a permeable membrane through which absorbed water is capable of being released from the gel upon application of pressure thereto from said pressure application surface, wherein said permeable membrane is isolated in use from the water source by an isolation means
    Type: Application
    Filed: November 13, 2007
    Publication date: August 26, 2010
    Applicant: The University of Sheffield
    Inventors: Richard A. L. Jones, Anthony J. Ryan, Helen Storey, Malcolm Butler, Colin James Crook