Patents by Inventor Deepankar Biswas

Deepankar Biswas 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).

  • Polymers and emulsions for use in oil and/or gas wells
    Patent number: 10577531
    Abstract: Methods and compositions comprising an emulsion or a microemulsion and a polymer for use in an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives. In certain embodiments, the polymer comprises a copolymer comprising an acrylamide.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: March 3, 2020
    Assignee: Flotek Chemistry, LLC
    Inventors: John T. Pursley, Glenn S. Penny, Charles Earl Hammond, David Germack, Nicole Mast, Deepankar Biswas, Arun Kharghoria
  • POLYMERS AND EMULSIONS FOR USE IN OIL AND/OR GAS WELLS
    Publication number: 20160032172
    Abstract: Methods and compositions comprising an emulsion or a microemulsion and a polymer for use in an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives. In certain embodiments, the polymer comprises a copolymer comprising an acrylamide.
    Type: Application
    Filed: September 17, 2015
    Publication date: February 4, 2016
    Applicant: CESI Chemical, Inc.
    Inventors: John T. Pursley, Glenn S. Penny, Charles Earl Hammond, David Germack, Nicole Mast, Deepankar Biswas, Arun Kharghoria
  • Architecture and implementation of closed user groups and limiting mobility in wireless networks
    Patent number: 7689238
    Abstract: A system for providing advanced voice services (AVS) in wireless communications systems includes a Real-Time Exchange (RTX) that interfaces to a wireless communications network to provide the AVS therein, wherein the AVS comprise Closed User Groups and Limiting Mobility. The Closed User Groups allow a group of users to make and receive calls only to other members of a group, and calls outside of the group are disallowed. The Limiting Mobility uses location information to restrict a mobile unit to service within one or more specified systems, cells or location areas.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: March 30, 2010
    Assignee: Kodiak Networks, Inc.
    Inventors: Deepankar Biswas, Krishnakant M. Patel, Giridhar K. Boray, Gorachand Kundu
  • Emergency group calling across multiple wireless networks
    Publication number: 20080064364
    Abstract: Emergency group calling services in a wireless network are comprised of mass outbound (MO) voice or text messages sent from an originating mobile unit to all terminating mobile units in response to a single invocation by the originating mobile unit. The emergency group calling services are invoked by transmitting a message from the originating mobile unit to a real-time exchange.
    Type: Application
    Filed: August 9, 2007
    Publication date: March 13, 2008
    Inventors: Krishnakant Patel, Deepankar Biswas, Sameer Dharangaonkar, Terakanambi Raja
  • ARCHITECTURE AND IMPLEMENTATION OF CLOSED USER GROUPS AND LIMITING MOBILITY IN WIRELESS NETWORKS
    Publication number: 20070037597
    Abstract: A system for providing advanced voice services (AVS) in wireless communications systems includes a Real-Time Exchange (RTX) that interfaces to a wireless communications network to provide the AVS therein, wherein the AVS comprise Closed User Groups and Limiting Mobility. The Closed User Groups allow a group of users to make and receive calls only to other members of a group, and calls outside of the group are disallowed.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 15, 2007
    Inventors: Deepankar Biswas, Krishnakant Patel, Giridhar Boray, Gorachand Kundu