Patents by Inventor Thyagarajan Mohan

Thyagarajan Mohan 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).

  • Prophosphatrane deprotonation of solvents
    Patent number: 5698737
    Abstract: A method is disclosed for deprotonating a compound comprising treating the compound with a base of the general formula: ##STR1## in the presence of a nitrile solvent; wherein R.sup.1, R.sup.2 and R.sup.3 are each individually H, (C.sub.1 -C.sub.15)alkyl, (C.sub.6 -C.sub.9)aryl, (C.sub.1 -C.sub.4)alkyl(C.sub.6 -C.sub.9)aryl, ((C.sub.1 -C.sub.4)alkyl).sub.3 Si, or (C.sub.6 -C.sub.9)aryl(C.sub.1 -C.sub.4)alkyl.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 16, 1997
    Assignee: Iowa State University Research Foundation
    Inventors: John G. Verkade, Thyagarajan Mohan, Andrzej E. Wroblewski
  • Mild desulfurization of sulfur-bearing materials
    Patent number: 5509945
    Abstract: A method for the removal of sulfur from sulfur-bearing materials such as coal and petroleum products using organophosphine and organophosphite compounds is provided.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 23, 1996
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: John G. Verkade, Thyagarajan Mohan
  • Method of removal of sulfur from coal and petroleum products
    Patent number: 5437696
    Abstract: A method for the removal of sulfur from sulfur-bearing materials such as coal and petroleum products using organophosphine and organophosphite compounds is provided.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: August 1, 1995
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: John G. Verkade, Thyagarajan Mohan, Robert J. Angelici