Patents by Inventor William R. Bull

William R. Bull 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: 4529507
    Abstract: Capryl alcohol is employed as a frother in the froth flotation of silica from iron ore.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: July 16, 1985
    Assignee: Union Camp Corporation
    Inventors: William R. Bull, David J. Spottiswood