Patents by Inventor Vincent N. R. Sewell

Vincent N. R. Sewell 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 enhancing oleophilic and hydrophobic properties of absorbent material
    Patent number: 4161460
    Abstract: A process for rendering porous materials oleophilic and hydrophobic so as to improve their ability to immobilize oil comprising coating the surfaces of the material with a non-volatile solid hydrocarbon or fatty acid. In one form the hydrocarbon may be molten paraffin wax. It may also be a solution of wax or fatty acid in a volatile organic solvent such as hexane.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: July 17, 1979
    Assignee: R. B. Cybernetris (1970) Ltd.
    Inventor: Vincent N. R. Sewell