Patents by Inventor Clive Hodgson

Clive Hodgson 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).

  • Hydroxy-aluminum chloride and sulfate polymer production
    Patent number: 4069299
    Abstract: Hydroxy-aluminum chloride or sulfate polymer is produced by reacting urea and aluminum chloride or aluminum sulfate in aqueous solution. The hydroxy-aluminum chloride and sulfate polymers are useful for consolidating soil in secondary oil recovery and for reducing the caking tendency of ammonium salt fertilizer compositions.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: January 17, 1978
    Assignee: Chevron Research Company
    Inventor: Clive Hodgson
  • Particulate ammonium nitrate with added ferric phosphate and calcium sulfate
    Patent number: 4049778
    Abstract: Improved-strength particulate ammonium nitrate containing minor amounts of ferric phosphate is produced by forming the ferric phosphate in situ in aqueous or molten ammonium nitrate from a ferric salt and phosphoric acid. Further improvement in strength is obtained by additionally incorporating minor amounts of calcium sulfate.
    Type: Grant
    Filed: May 3, 1973
    Date of Patent: September 20, 1977
    Assignee: Chevron Research Company
    Inventor: Clive Hodgson
  • Non-caking hydroxy-aluminum polymer-coated ammonium salt compositions
    Patent number: 3953192
    Abstract: The caking tendency of ammonium salt compositions during storage is reduced by coating the compositions with a minor amount of a hydroxy-aluminum polymer.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: April 27, 1976
    Assignee: Chevron Research Company
    Inventors: Clive Hodgson, George R. Hawkes, Marion G. Reed, William G. Toland