Patents by Inventor John Robert Newton

John Robert Newton 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).

  • Amorphous silicas
    Patent number: 5643624
    Abstract: An amorphous silica has a pore volume in the range of from about 1.6 to about 2.5 cc g.sup.-1, a mean pore diameter in the range of from about 8.0 to about 20 nm, a surface area in the range from about 450 to about 1100 m.sup.2 g.sup.-1 and an oil absorption in the range of from about 250 to about 350 cc/100g.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: July 1, 1997
    Assignee: Unilever Patent Holdings BV
    Inventors: Derek Aldcroft, John Robert Newton, Peter William Stanier