Patents by Inventor Theodore O. Wentworth

Theodore O. Wentworth 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).

  • Production of methanol
    Patent number: 4235799
    Abstract: Methanol is produced by passing a mixture of hydrogen and one or more carbon oxides into contact with at least two beds (converters) of catalyst arranged in series, the beds of catalyst being operated at increasing temperature levels in the direction of flow of the mixture. The mixture is then cooled by indirect heat-exchange and passed into contact with at least one further bed of catalyst.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: November 25, 1980
    Inventors: Theodore O. Wentworth, Alvin B. Stiles
  • Urea manufacture
    Patent number: 3932504
    Abstract: Urea is made from ammonia and carbon dioxide by first reacting ammonia and carbon dioxide to form urea, ammonium carbamate and water, and then decomposing the carbamate to ammonia and carbon dioxide which are returned to the reaction zone.
    Type: Grant
    Filed: May 19, 1970
    Date of Patent: January 13, 1976
    Assignee: Vulcan-Cincinnati, Inc.
    Inventors: Larry P. Chen, Theodore O. Wentworth