Patents by Inventor Stephen B. Rice

Stephen B. Rice 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).

  • Tin substitution into zeolite frameworks
    Patent number: 4933161
    Abstract: This invention relates to novel zeolitic compositions having tin substituted into the framework positions and a method for their preparation. The process of preparation more specifically involves hydrothermally treating aluminosilicate silica zeolite in the presence of tin compounds.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: June 12, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: David E. W. Vaughan, Stephen B. Rice