Patents by Inventor Nigel Stansfeld

Nigel Stansfeld 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).

  • Patent number: 4738876
    Abstract: A process for treating a stone surface is disclosed. Stone floor surfaces, such as, marble and terrazzo, are treated with an acid conditioner followed by buffing with a crystallizing agent whereby a durable, high gloss finish is produced in situ on the floor surface.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: April 19, 1988
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Roger D. George, Sampath R. Pasupathikoil, Nigel Stansfeld