Patents by Inventor Omkar A. Namjoshi

Omkar A. Namjoshi 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: 11597890
    Abstract: This disclosure relates to base stocks comprising a C28-C32 hydrocarbon fraction and optionally a C42-C48 hydrocarbon fraction produced by dimerization and trimerization of a linear C14 mono-olefin, a linear C16 mono-olefin, or a mixture thereof, in the presence of a Lewis acid, oil compositions comprising such base stock(s), and processes for making such base stocks.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 7, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Omkar A. Namjoshi, Kyle G. Lewis, Wenning W. Han
  • Publication number: 20210388282
    Abstract: This disclosure relates to base stocks comprising a C28-C32 hydrocarbon fraction and optionally a C42-C48 hydrocarbon fraction produced by dimerization and trimerization of a linear C14 mono-olefin, a linear C16 mono-olefin, or a mixture thereof, in the presence of a Lewis acid, oil compositions comprising such base stock(s), and processes for making such base stocks.
    Type: Application
    Filed: September 19, 2019
    Publication date: December 16, 2021
    Inventors: Omkar A. Namjoshi, Kyle G. Lewis, Wenning W. Han
  • Patent number: 10876062
    Abstract: This disclosure relates to cold cranking simulator viscosity (“CCSV”) boosting base stocks that allow flexibility for engine oil formulations to meet both high and low temperature viscosity requirements while maximizing fuel efficiency. The CCSV-boosting base stocks can include C28-C60 hydrocarbon materials, linear esters, tertiary amides, dialkyl carbonates, aromatic alcohols, and aromatic ethers. This disclosure also relates to lubricating oil formulations containing the CCSV-boosting base stocks, and a method for improving fuel efficiency in an engine by using as engine oil a lubricating oil formulation containing one or more of the CCSV-boosting base stocks.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: December 29, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kyle G. Lewis, Patrick C. Chen, Mark P. Hagemeister, Omkar A. Namjoshi
  • Publication number: 20180273872
    Abstract: This disclosure relates to cold cranking simulator viscosity (“CCSV”) boosting base stocks that allow flexibility for engine oil formulations to meet both high and low temperature viscosity requirements while maximizing fuel efficiency. The CCSV-boosting base stocks can include C28-C60 hydrocarbon materials, linear esters, tertiary amides, dialkyl carbonates, aromatic alcohols, and aromatic ethers. This disclosure also relates to lubricating oil formulations containing the CCSV-boosting base stocks, and a method for improving fuel efficiency in an engine by using as engine oil a lubricating oil formulation containing one or more of the CCSV-boosting base stocks.
    Type: Application
    Filed: February 26, 2018
    Publication date: September 27, 2018
    Inventors: Kyle G. Lewis, Patrick C. Chen, Mark P. Hagemeister, Omkar A. Namjoshi
  • Publication number: 20170080378
    Abstract: A novel blend of piperazine (PZ) and a second amine compound is provided as a superior solvent for CO2 capture from coal-fired flue gas. Blending PZ with various second amine compounds can remediate the precipitation issue of concentrated PZ while maintaining its high CO2 absorption capacity and rate, and high resistance to oxidative degradation.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: Gary Rochelle, Yang Du, Omkar Namjoshi
  • Patent number: 9321007
    Abstract: Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a blend of piperazine and at least one diamine or triamine.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: April 26, 2016
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Gary Rochelle, Omkar Namjoshi, Le Li, Yang Du, Thu Nguyen
  • Publication number: 20150073150
    Abstract: Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a blend of piperazine and at least one diamine or triamine.
    Type: Application
    Filed: July 18, 2014
    Publication date: March 12, 2015
    Inventors: Gary Rochelle, Omkar Namjoshi, Le Li, Yang Du, Thu Nguyen
  • Publication number: 20140199220
    Abstract: Methods related to the removal of acidic gas are provided. In particular, the present disclosure relates to methods for the removal of acidic gas from a gas mixture, wherein said methods minimize the accumulated concentration of nitrosamines.
    Type: Application
    Filed: January 14, 2013
    Publication date: July 17, 2014
    Inventors: Gary ROCHELLE, Mandana ASHOURIPASHAKI, Alexander K. VOICE, Omkar NAMJOSHI, Steven FULK