Patents by Inventor D. Bhattacharyya

D. Bhattacharyya 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).

  • Patent number: 11970653
    Abstract: The present disclosure relates to a polymeric blend composite comprising Poly Ether Ketone/Poly-(2,5-Benzimidazole) containing pre-treated multi walled carbon nanotubes (MWCNTs) between 0.5 to 5 wt % were melt processed on a twin-screw extruder and granules so obtained were injection molded to determine heat deflection temperature (HDT) of these composites and storage modulus using DMA. It was found that HDT and storage Modulus for so produced reinforced blends were unexpectedly extremely high as compared to PEK/ABPBI blends without MWCNTs.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: April 30, 2024
    Assignee: GHARDA CHEMICALS LIMITED
    Inventors: Aditi S. Kapadia, Prakash D. Trivedi, Amol T. Patil, Arup R. Bhattacharyya
  • Publication number: 20150032621
    Abstract: A method for authenticating a user in a payment transaction using a computing device includes: storing location data entries, each entry including a geographic location of a mobile device and a time; receiving an authorization request for a payment transaction, the request including an account identifier, location identifier, and authorization time; identifying a specific data entry where the included time is within a predetermined period of time of the authorization time; when the location included in the specific data entry is indicative of the mobile device being not present at the location of the location identifier, transmitting a request to a computing device associated with the account identifier for action by a user to prove their identity; receiving, data conveying the action taken by the user; and authenticating the user based on the received data and authentication information associated with a payment account corresponding to the account identifier.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 29, 2015
    Applicant: MASTERCARD INTERNATIONAL INCORPORATED
    Inventors: Anindeep Kar, Surya D. Bhattacharyya, Kristofer Perez, Gregory Williamson
  • Publication number: 20120302805
    Abstract: The present subject matter relates to a feed nozzle assembly 100 for atomizing a heavy hydrocarbon feed by mixing the hydrocarbon feed with a diluent and an atomizing media. The feed nozzle assembly 100 includes at least one primary mixing chambers 101 for receiving the liquid hydrocarbon feed and the diluent to create a primary mixture. The primary mixture is than forwarded to a secondary mixing chamber 102. The secondary mixing chamber extends to a tertiary mixing chamber 103. A steam inlet 110 is provided to inject streams of steam to the secondary mixing chamber 102 and to the tertiary mixing chamber 103 through a first opening and a second opening, respectively, located within the steam inlet 110.
    Type: Application
    Filed: December 3, 2010
    Publication date: November 29, 2012
    Inventors: Bidyut De, P.K. Kasliwal, D. Bhattacharyya, V. Krishnan, S. Rajagopal