Patents by Inventor Derek C. Lewis

Derek C. Lewis 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).

  • Method of producing ammonia
    Patent number: 4325931
    Abstract: A method is disclosed for the production of ammonia by catalyzed reaction between hydrogen and nitrogen, a new catalyst being used which is an intermetallic compound essentially consisting of at least one metal selected from the groups consisting of alkali and alkaline earth metals, with the exception of Be, and at least one metal selected from the group consisting of transition metals.
    Type: Grant
    Filed: August 19, 1979
    Date of Patent: April 20, 1982
    Inventor: Derek C. Lewis