Patents by Inventor Pravin Pandharinath UPARE

Pravin Pandharinath UPARE 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).

  • Preparing method for 5-alkoxymethylfurfural
    Patent number: 11597709
    Abstract: The present disclosure provides a preparing method for 5-alkoxymethylfurfural, including steps of (a) preparing fructose, (b) mixing the fructose, an organic acid catalyst, and an organic solvent, thereby preparing mixing solution, and (c) heating the mixing solution, thereby preparing 5-alkoxymethylfurfural. Therefore, 5-alkoxymethylfurfural may be effectively prepared without by-products from fructose.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: March 7, 2023
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Dong Won Hwang, Young Kyu Hwang, Ma Eum Lee, Pravin Pandharinath Upare, Do Young Hong
  • PREPARING METHOD FOR 5-ALKOXYMETHYLFURFURAL
    Publication number: 20210253545
    Abstract: The present disclosure provides a preparing method for 5-alkoxymethylfurfural, including steps of (a) preparing fructose, (b) mixing the fructose, an organic acid catalyst, and an organic solvent, thereby preparing mixing solution, and (c) heating the mixing solution, thereby preparing 5-alkoxymethylfurfural. Therefore, 5-alkoxymethylfurfural may be effectively prepared without by-products from fructose.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 19, 2021
    Inventors: Dong Won HWANG, Young Kyu HWANG, Ma Eum LEE, Pravin Pandharinath Upare, Do Young HONG
  • Method and apparatus for preparation of lactide using lactide purification process
    Patent number: 10253012
    Abstract: The present invention relates to a method and apparatus for preparation of lactide using a lactide purification process, comprising introducing an aqueous solution comprising lactic acid into a reactor filled with a catalyst and reacting the same to produce crude lactide vapor; and purifying the crude lactide vapor to produce lactide crystals, wherein a first purification comprises collecting and crystallizing the crude lactide vapor using a first solvent to produce lactide crystals, and separating the lactide crystal from a residue through filtration.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: April 9, 2019
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Dong Won Hwang, Jong San Chang, Young Kyu Hwang, U Hwang Lee, Do Young Hong, Su Kyung Lee, Kyung Ho Cho, Pravin Pandharinath Upare
  • Method for preparing fructose or xylulose from biomass containing glucose or xylose using butanol, and method for separating the same
    Patent number: 10227668
    Abstract: The present invention relates to a method for preparing fructose or xylulose from biomass comprising glucose or xylose, and a method for separating a mixture of glucose and fructose and a mixture of xylose and xylulose.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: March 12, 2019
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Dong Won Hwang, Pravin Pandharinath Upare, Young Kyu Hwang, In Taek Hwang, Jong San Chang, Do Young Hong, U Hwang Lee
  • METHOD FOR PREPARATION OF MANNITOL FROM FRUCTOSE USING BUTANOL AS SOLVENT
    Publication number: 20180339955
    Abstract: The present invention relates to a method for preparing mannitol which includes performing the hydrogenation of fructose in the presence of a Cu-based nanocomposite catalyst, for example, a nanocomposite catalyst of CuO(x)/SiO2(100-x) (wherein x is a real number from 20 to 90), using butanol as a solvent.
    Type: Application
    Filed: May 29, 2018
    Publication date: November 29, 2018
    Inventors: Dong Won HWANG, Pravin Pandharinath UPARE, Young Kyu HWANG, Do Young HONG, Jong San CHANG, U Hwang LEE, Su Kyung LEE, Kyung Ho CHO
  • Method for preparation of mannitol from fructose using butanol as solvent
    Patent number: 10138185
    Abstract: The present invention relates to a method for preparing mannitol which includes performing the hydrogenation of fructose in the presence of a Cu-based nanocomposite catalyst, for example, a nanocomposite catalyst of CuO(x)/SiO2(100-x) (wherein x is a real number from 20 to 90), using butanol as a solvent.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 27, 2018
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Dong Won Hwang, Pravin Pandharinath Upare, Young Kyu Hwang, Do Young Hong, Jong San Chang, U Hwang Lee, Su Kyung Lee, Kyung Ho Cho
  • METHOD FOR PREPARING FRUCTOSE OR XYLULOSE FROM BIOMASS CONTAINING GLUCOSE OR XYLOSE USING BUTANOL, AND METHOD FOR SEPARATING THE SAME
    Publication number: 20180002769
    Abstract: The present invention relates to a method for preparing fructose or xylulose from biomass comprising glucose or xylose, and a method for separating a mixture of glucose and fructose and a mixture of xylose and xylulose.
    Type: Application
    Filed: June 27, 2017
    Publication date: January 4, 2018
    Inventors: Dong Won HWANG, Pravin Pandharinath UPARE, Young Kyu HWANG, In Taek HWANG, Jong San CHANG, Do Young HONG, U Hwang LEE
  • METHOD AND APPARATUS FOR PREPARATION OF LACTIDE USING LACTIDE PURIFICATION PROCESS
    Publication number: 20170101390
    Abstract: The present invention relates to a method and apparatus for preparation of lactide using a lactide purification process, comprising introducing an aqueous solution comprising lactic acid into a reactor filled with a catalyst and reacting the same to produce crude lactide vapor; and purifying the crude lactide vapor to produce lactide crystals, wherein a first purification comprises collecting and crystallizing the crude lactide vapor using a first solvent to produce lactide crystals, and separating the lactide crystal from a residue through filtration.
    Type: Application
    Filed: October 11, 2016
    Publication date: April 13, 2017
    Inventors: Dong Won HWANG, Jong San CHANG, Young Kyu HWANG, U Hwang LEE, Do Young HONG, Su Kyung LEE, Kyung Ho CHO, Pravin Pandharinath UPARE