Patents by Inventor Nutan K. Pande

Nutan K. Pande 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).

  • Preparation of para-xylene by toluene methylation
    Patent number: 4935574
    Abstract: A silica catalyst that retains its high initial activity for a longer time is obtained by forming the catalyst from an aquasol that was obtained by mixing an alkali metal aluminate with an aqueous solution of alkali metal silicate.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: June 19, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael B. D'Amore, Nutan K. Pande
  • Preparation of promoted silica catalysts
    Patent number: 4843057
    Abstract: A silica catalyst that retains its high initial activity for a longer time is obtained by forming the catalyst from an aquasol that was obtained by mixing an alkali metal aluminate with an aqueous solution of alkali metal silicate.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: June 27, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael B. D'Amore, Nutan K. Pande