Patents by Inventor Heejin Hwang

Heejin Hwang 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).

  • Modified yeast microorganisms to increase yield of 3-hydropropionic acid
    Patent number: 12215373
    Abstract: Methods and compositions (e.g., engineered hosts) are disclosed for use in converting biomass to 3-hydropropionic acid. In particular embodiments, the methods include use of an engineered Rhodosporidium yeast, such as R. toruloides, the engineered R. toruloides having the RT04_8975 gene deleted from its genome, combined with a lignocellulosic hydrolysate, sourced, for example, from a biomass. A promoter for enhancing transport of 3HP is also incorporated by addition to the R. toruloides genome, for example, by modified lithium acetate transformation.
    Type: Grant
    Filed: March 15, 2023
    Date of Patent: February 4, 2025
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Di Liu, Peter Britton Otoupal, HeeJin Hwang, John Michael Gladden
  • Enzyme used in biosynthesis of 1, 4-BDO and screening method of the same
    Patent number: 9493746
    Abstract: Recombinant butyraldehyde dehydrogenases (Blds) with improved production of 1,4-BDO, as well as recombinant microorganisms comprising polynucleotides encoding the recombinant Blds, and methods of producing 1,4-BDO by using the recombinant microorganisms.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: November 15, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jinhwan Park, Pyungcheon Lee, Jaechan Park, Youngmin Lee, Wooyong Lee, Jinwoo Park, Kwangmyung Cho, Heejin Hwang
  • ENZYME USED IN BIOSYNTHESIS OF 1, 4-BDO AND SCREENING METHOD OF THE SAME
    Publication number: 20150111268
    Abstract: Recombinant butyraldehyde dehydrogenases (Blds) with improved production of 1,4-BDO, as well as recombinant microorganisms comprising polynucleotides encoding the recombinant Blds, and methods of producing 1,4-BDO by using the recombinant microorganisms.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 23, 2015
    Inventors: Jinhwan Park, Pyungcheon Lee, Jaechan Park, Youngmin Lee, Wooyong Lee, Jinwoo Park, Kwangmyung Cho, Heejin Hwang