Patents by Inventor Richard Howard Hughes

Richard Howard Hughes 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).

  • Synthetic asphalt
    Patent number: 6358621
    Abstract: There is disclosed a synthetic asphalt comprising a synthetic bitumen mixed with filler and aggregate. Pigments may be added to the synthetic asphalt so as to produce a wide range of differently-colored surfacing materials. The synthetic asphalt may be applied hot and embossed with a groove pattern so as to simulate a block paved surface.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: March 19, 2002
    Assignee: Fibrescreed Limited
    Inventors: Richard Howard Hughes, Jacquiline Nadine Redding