Patents by Inventor Jayanthi Doraswamy

Jayanthi Doraswamy 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).

  • On-board automotive exhaust catalyst monitoring with a calorimetric sensor
    Patent number: 5444974
    Abstract: A calorimetric sensor comprising closely spaced, similarly constructed catalyzed (oxidation catalyst) and uncatalyzed members can be placed in the exhaust gas stream of an automotive engine downstream of a catalytic converter to aid assessment of the efficacy of the converter, especially when the exhaust is hot and at an appreciable steady flow rate and the engine is operating at the stoichiometric air-to-fuel ratio or lean of such ratio.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: August 29, 1995
    Assignee: General Motors Corporation
    Inventors: Donald D. Beck, Jayanthi Doraswamy, Oscar A. Lecea