Patents by Inventor Young-Doug Sohn

Young-Doug Sohn 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).

  • Publication number: 20220370507
    Abstract: This disclosure relates to endothelial and smooth muscle like vascular tissue produced from urine cells. In certain embodiments, the disclosure relates to methods of producing endothelial and smooth muscle like vascular tissue by exposing urine derived cells with ETV2 in a first growth media under conditions such that the cells are modified to form a pool of cells expressing increased levels of endothelium surface markers and thereafter exposing the pool of cells to a second growth media under conditions such that the cells are modified to form tissue containing cells expressing increased levels of smooth muscle surface markers in addition to the endothelium surface markers. In certain embodiments, the disclosure relates to using cells and tissues reported herein for the treatment of vascular, cardiac, and wound healing indications.
    Type: Application
    Filed: July 10, 2020
    Publication date: November 24, 2022
    Inventors: Young-Sup YOON, Young-Doug SOHN, Sang-Ho LEE
  • Publication number: 20220251531
    Abstract: The present invention relates to a mutated non-toxic protease in which the amino acid cysteine (Cys) at position 430 of a non-toxic protease represented by the amino acid sequence of SEQ ID NO: 1 is substituted with an amino acid other than cysteine. According to the present invention, it is possible to recover a refolded non-toxic protease from an insoluble fraction from which the non-toxic protease was almost impossible to recover in the prior art, and thus it is possible to produce the non-toxic protease with significantly improved productivity.
    Type: Application
    Filed: April 28, 2020
    Publication date: August 11, 2022
    Inventors: Young Doug SOHN, Ho-Jun KIM, Ui Jung KWON, Jong-Tak KIM, Kyoung Soo KIM
  • Patent number: 8377676
    Abstract: The present invention relates to a batroxobin-encoding nucleotide sequence and/or a mutated ?-factor secretion signal sequence, and a vector and a transformant using the same. The batroxobin-encoding nucleotide sequence of this invention exhibits an excellent expression efficiency in yeast, particular Pichia pastoris and the recombinant batroxobin is obtained at 4-13 fold higher yield than natural-occurring batroxobin-encoding sequences. The protein expression system which uses the batroxobin-encoding nucleotide sequence as well as mutated ?-factor secretion signal peptide sequence of this invention obtains the recombinant batroxobin at about 20-fold higher yield than natural-occurring batroxobin-encoding sequences. In addition, the recombinant batroxobin prepared using the sequence of this invention has a significantly plausible activity and stability compared with natural-occurring batroxobin.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: February 19, 2013
    Assignee: Biobud Co., Ltd
    Inventors: Young-Doug Sohn, Bum Joon Kim, Ok Hwan Kim, Kyoung Jun Kim, Ji Hun Shin, Sung Yu Hong, Jae Hoon Hwang, Kwang Hoe Chung
  • Patent number: 8106071
    Abstract: The present invention relates to a method for treating or reducing the development of a hyperproliferative disorder, which comprises administering to a subject a composition, which comprises as an active ingredient the compound represented by the Formula 1: wherein R1, R2, R3, R4, R5, R6 and R7 independently represent hydrogen, halo, hydroxyl, cyano, amino, nitro, nitroso, carboxyl, C1-C12 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl, C5-C7 cycloalkenyl, C1-C6 alkylamino, C1-C6 alkoxy, aryl, heteroaryl, arylalkyl, arylalkenyl or alkylaryl; X and Y independently represent hydrogen, oxygen, or sulfur, bound to a carbon atom via a single or double bond; Z represents hydrogen, halo, hydroxyl, cyano, amino, nitro, nitroso, carboxyl, C1-C12 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl, C5-C7 cycloalkenyl, C1-C6 alkylamino, C1-C6 alkoxy, aryl, heteroaryl, arylalkyl, arylalkenyl, alkylaryl or —NH—R8; R8 represents hydrogen, halo, hydroxyl, cyano, amino, nitro, nitroso, carboxyl, C1-C12 alkyl, C2-C6 alkenyl, C3-C8 cy
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: January 31, 2012
    Assignee: Biobud Co., Ltd.
    Inventors: Kwang Hoe Chung, Chwang Siek Pak, Sung Yu Hong, Soo Jung Kang, Young Doug Sohn, Jae Hoon Hwang, Eun Bok Choi, Gyu Hwan Yon, Hyeon Kyu Lee, Heui Cheol Yang
  • Publication number: 20110136207
    Abstract: The present invention relates to a batroxobin-encoding nucleotide sequence and/or a mutated ?-factor secretion signal sequence, and a vector and a transformant using the same. The batroxobin-encoding nucleotide sequence of this invention exhibits an excellent expression efficiency in yeast, particular Pichia pastoris and the recombinant batroxobin is obtained at 4-13 fold higher yield than natural-occurring batroxobin-encoding sequences. The protein expression system which uses the batroxobin-encoding nucleotide sequence as well as mutated ?-factor secretion signal peptide sequence of this invention obtains the recombinant batroxobin at about 20-fold higher yield than natural-occurring batroxobin-encoding sequences. In addition, the recombinant batroxobin prepared using the sequence of this invention has a significantly plausible activity and stability compared with natural-occurring batroxobin.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 9, 2011
    Applicant: Biobud Co., Ltd.
    Inventors: Young-Doug Sohn, Bum Joon Kim, Ok Hwan Kim, Kyoung Jun Kim, Ji Hun Shin, Sung Yu Hong, Jae Hoon Hwang, Kwang Hoe Chung
  • Publication number: 20100120849
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating hyperproliferative vascular disorders, and a pharmaceutical anticancer composition comprising the compound represented by the Formula 1. The present compounds exhibit IC50 values of less than 0.16 ?M for vascular smooth muscle cells and cancer cells to effectively prevent proliferation of vascular smooth muscle cells and cancer cells, thereby ensuring prevention or treatment of hyperproliferative vascular disorders such as arteriosclerosis and restenosis, and cancers.
    Type: Application
    Filed: May 23, 2007
    Publication date: May 13, 2010
    Applicant: Biobud Co., Ltd
    Inventors: Kwang Hoe Chung, Chwang Siek Pak, Sung Yu Hong, Soo Jung Kang, Young Doug Sohn, Jae Hoon Hwang, Eun Bok Choi, Gyu Hwan Yon, Hyeon Kyu Lee, Heui Cheol Yang
  • Patent number: 7033788
    Abstract: The present invention relates to Saxatilin, a protein derived from the venom of a Korean snake, Agkistrodon saxatilis emelianov, a process for preparing Saxatilin, and pharmaceutical application of the same as anti-platelet aggregation agent and anti-tumor agent. The present inventors purified Saxatilin from the venom of Agkistrodon saxatilis emelianov, cloned its cDNA, and prepared recombinant Saxatilin by culturing a microorganism transformed with an expression vector containing the cDNA. Saxatilin effectively suppresses the platelet aggregation and angiogenesis of tumor cells, which makes possible its practical application as an active ingredient of anti-platelet agent and anti-tumor agent.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: April 25, 2006
    Inventors: Kwang-Hoe Chung, Doo-sik Kim, Sung-Yu Hong, You-Seok Koh, Young-Doug Sohn, Weon-Kyoo You, Yang-Soo Jang, Chin-Kyu Huh
  • Publication number: 20050032189
    Abstract: The present invention relates to Saxatilin, a protein derived from the venom of a Korean snake, Agkistrodon saxatilis emelianov, a process for preparing Saxatilin, and pharmaceutical application of the same as anti-platelet aggregation agent and anti-tumor agent. The present inventors purified Saxatilin from the venom of Agkistrodon saxatilis emelianov, cloned its cDNA, and prepared recombinant Saxatilin by culturing a microorganism transformed with an expression vector containing the cDNA. Saxatilin effectively suppresses the platelet aggregation and angiogenesis of tumor cells, which makes possible its practical application as an active ingredient of anti-platelet agent and anti-tumor agent.
    Type: Application
    Filed: March 26, 2002
    Publication date: February 10, 2005
    Inventors: Kwang-Hoe Chung, Doo-Sik Kim, Sung-Yu Hong, You-Seok Koh, Young-Doug Sohn, Weon-Kyoo You, Yang-Soo Jang, Chin-Kyu Huh