Patents by Inventor Aubrey P. Ward

Aubrey P. Ward 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).

  • Process for the production of sintered bauxite spheres
    Patent number: 4440866
    Abstract: A process for producing high strength sintered bauxite spheres usable as fracture propping agents in oil or gas wells are produced by continuous spray-granulation of an aqueous binder-containing aluminous ore suspension to form granules which are subsequently sintered. Suitable starting materials include ores of high aluminum silicate content.
    Type: Grant
    Filed: October 28, 1982
    Date of Patent: April 3, 1984
    Assignee: A/S Niro Atomizer
    Inventors: Eugene P. Lunghofer, Sten Mortensen, Aubrey P. Ward