Patents by Inventor Krishnamurthy Giridharagopal

Krishnamurthy Giridharagopal 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 using dynamic database to improve telephone number portability
    Patent number: 5793857
    Abstract: A system for providing telephone number portability within a structurally distributed telephone system by providing an address capture database (ACDB) for local exchange carriers (LECs) wherein a new number (NN) is stored in the ACDB if the NN is a physical address served by a LEC and the NN corresponds to a dialled directory number (DN) ported into or located within the LEC.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: August 11, 1998
    Assignee: Northern Telecom Limited
    Inventors: Stephen Dean Barnes, James F. Bartoszewicz, Ronald Schwartz, Krishnamurthy Giridharagopal