Patents by Inventor Giovindasamy P. Rajendran

Giovindasamy P. Rajendran 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).

  • Process for producing catalyst coated thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum
    Patent number: 5370920
    Abstract: A ceramic honeycomb structure containing SiO.sub.2, Al.sub.2 O.sub.3 and MgO primarily in the form of cordierite, mullite and corundum and having extensive microcracking provides high resistance to thermal shock, and is useful as a substrate for catalysts. Such a structure is prepared by coating a preform of glass fibers with an alumina dispersion and firing the coated preform so that the glass and alumina react to form cordierite, mullite and corundum.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: December 6, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: George D. Forsythe, Giovindasamy P. Rajendran
  • Silane coupling agents polyimide-mineral oxide composites
    Patent number: 4778727
    Abstract: An adhesion promoter for polyimide is provided having the formula: ##STR1## wherein A is ##STR2## Ar is an aromatic group, R.sup.1 is lower alkyl, R.sup.11 is OR.sup.1 or lower alkyl, R.sup.111 is hydrogen or lower alkyl.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: October 18, 1988
    Assignee: Massachusetts Institute of Technology
    Inventors: Giuliana C. Tesoro, Donald R. Uhlmann, Giovindasamy P. Rajendran, Chan E. Park