Patents by Inventor Simone Toufar

Simone Toufar 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 manufacture of molecular sieves
    Patent number: 5916836
    Abstract: Zeolites exchanged with lithium ions and, optionally, with polyvalent cations are prepared by ion-exchanging a sodium-containing zeolite, a potassium-containing zeolite or a sodium- and potassium-containing zeolite with ammonium ions, thereby replacing the sodium and/or potassium ions with ammonium ions, and then reacting the ammonium ion-exchanged zeolite with a water-soluble lithium compound under conditions which result in the removal of ammonia from the reaction zone. Polyvalent ions, which may be present in the zeolite undergoing ion-exchange, will not be substantially replaced by the ammonium or lithium ions.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: June 29, 1999
    Assignees: Tricat Management GmbH, The BOC Group, Inc.
    Inventors: Helge Toufar, Simone Toufar, Philip Kenerick Maher, Adeola Florence Ojo, Frank R. Fitch, Martin Bulow