Patents by Inventor Richard Dutta

Richard Dutta 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).

  • Apparatus and method for low grade heat recovery in an electric vehicle
    Patent number: 11958334
    Abstract: A heat recovery system for an electric vehicle, including first and second switchable heat sources and a controller operable to selectively switch one of the heat sources into thermal communication with a compressor in a thermodynamic cycling system, the thermodynamic cycling system being in thermal communication with a heat sink; and a detector of a temperature differential between each of the switchable heat sources and a fluid entering the compressor; wherein the controller is operable to switch one of the first and second switchable heat sources into thermal communication with the thermodynamic cycling system when a temperature differential is detected between the fluid entering the compressor in the thermodynamic cycling system and the heat available from the switchable heat source, the temperature differential being such that the compressor is operable to upgrade low grade heat from the switchable heat source to a higher grade heat upon operation of the compressor.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: April 16, 2024
    Assignee: Jaguar Land Rover Limited
    Inventors: Chris Chatham, Dhillip Asokan, Kate Rouse, Oliver Stocks, Nilabza Dutta, Richard Cook
  • HYDROCRACKING OPERATION WITH REDUCED ACCUMULATION OF HEAVY POLYNUCLEAR AROMATICS
    Publication number: 20240101913
    Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.
    Type: Application
    Filed: December 29, 2021
    Publication date: March 28, 2024
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Ling JIAO, Bi-Zheng ZHAN, Don BUSHEE, Theodorus Ludovicus Michael MAESEN, Hye-Kyung TIMKEN, Richard DUTTA, Jay PAREKH
  • HYDROCRACKING OPERATION WITH REDUCED ACCUMULATION OF HEAVY POLYNUCLEAR AROMATICS
    Publication number: 20220204873
    Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Ling Jiao, Bi-Zeng Zhan, Don Bushee, Theodorus Ludovicus Michael Maesen, Hye-Kyung Timken, Richard Dutta, Jay Parekh
  • Process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition
    Patent number: 8772209
    Abstract: Disclosed herein is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: July 8, 2014
    Assignee: Chevron Oronite Company LLS
    Inventors: Cedrick Mahieux, Richard Dutta, Curtis Campbell
  • PROCESS FOR PREPARING A SALT OF A SULFURIZED ALKYL-SUBSTITUTED HYDROXYAROMATIC COMPOSITION
    Publication number: 20140142347
    Abstract: Disclosed herein is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: Chevron Oronite Company LLC
    Inventors: Cedrick Mahieux, Richard Dutta, Curtis Campbell