Patents by Inventor Dhirajlal Shah

Dhirajlal Shah 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).

  • System and method for secure software installation
    Patent number: 6725205
    Abstract: A method secures software in a computer system that has one or more fixed disk drives. Each fixed disk drive is configured with a predetermined system serial number, such that each fixed disk drive has the same system serial number. Software is received with an associated target serial number. The associated target serial number is compared to the system serial number on every fixed disk drive. The file is installed when the system serial number on every fixed disk drive is the same as the associated target serial number. A computer program product embodies the method described above.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: April 20, 2004
    Assignee: Ulysses ESD, Inc.
    Inventors: Jonathan Frederic Weiler, Charles Garizas, Keyush Dhirajlal Shah
  • Silicon nitride cutting tool
    Patent number: 5034022
    Abstract: A coated densified ceramic cutting tool has a granular phase of silicon nitride, silicon aluminum oxynitride, and a reaction formed submicron refractory metal nitride uniformly distributed in a matrix of a suitable densification aid with a coating comprising an interfacial layer of titanium nitride followed by at least one layer of refractory metal material.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: July 23, 1991
    Assignee: GTE Valenite Corporation
    Inventors: Deepak Bhat, Dhirajlal Shah
  • Silicon nitride cutting tool
    Patent number: 4881950
    Abstract: A coated densified ceramic cutting tool has a granular phase of silicon nitride, silicon aluminum oxynitride, and a reaction formed submicron refractory metal nitride uniformly distributed in a matrix of a suitable densification aid with a coating comprising an interfacial layer of titanium nitride followed by at least one layer of refractory metal material.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: November 21, 1989
    Assignee: GTE Valenite Corporation
    Inventors: Deepak Bhat, Dhirajlal Shah