Patents by Inventor Donald Eric Weiss

Donald Eric Weiss 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).

  • Filtration process
    Patent number: 3951799
    Abstract: A method of phase separation using ferromagnetic materials. A mixture of phases is treated with particles or granules of ferromagnetic material so that one of the phases is preferentially absorbed or collected onto or into the particles or granules. The particles or granules of the ferromagnetic material together with the absorbed or collected phase may then be recovered from the remainder of the mixture using magnetic means.
    Type: Grant
    Filed: November 20, 1974
    Date of Patent: April 20, 1976
    Assignees: Commonwealth Scientific and Industrial Research Organization, Imperial Chemical Industries of Australia, New Zealand Limited
    Inventors: Donald Eric Weiss, Hendrik Adriaan Jacobus Battaerd