Patents by Inventor Jee Won Ahn

Jee Won Ahn 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: 20240034749
    Abstract: The present invention relates to a method for purification of hemopexin and haptoglobin and provides a method in which a solution containing hemopexin and haptoglobin is titrated to a range of specific pH values without a step of precipitating haptoglobin by salt addition, followed by separating and purifying hemopexin and haptoglobin individually.
    Type: Application
    Filed: January 27, 2022
    Publication date: February 1, 2024
    Applicant: GREEN CROSS CORPORATION
    Inventors: Jee Won AHN, Jong Ho LEE, Mi Ji YU, Eun Jung LEE, Ji Eun KANG, Ji Hoon KIM, Nohra PARK, Dong Hoon KANG, Ju Ho LEE
  • Patent number: 11608358
    Abstract: Disclosed is a method for preparing a composition comprising factor VIII (FVIII) and von Willebrand factor (vWF), wherein the content of the von Willebrand factor (vWF) can be controlled by mixing the factor VIII (FVIII) with the von Willebrand factor (vWF) at an appropriate ratio after separately purifying the factor VIII (FVIII) and the von Willebrand factor (vWF) from plasma in a single process. The method can prepare and purify a composition comprising factor VIII (FVIII) and a varying content of von Willebrand factor (vWF) without increasing the amount of impurities other than the von Willebrand factor (vWF) compared to a method of purifying factor VIII (FVIII) separately, without significantly increasing the processing time (within 3 hours) compared to a method of purifying factor VIII (FVIII), and without changing the yield of factor VIII (FVIII).
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: March 21, 2023
    Assignee: GREEN CROSS HOLDINGS CORPORATION
    Inventors: Jee Won Ahn, Kwan Young Ko, Jeong Hye Yoon, Seung-Ho Baek, Min Jung Kim, Geun Hye Yeo, Jung-Ae Lim, Soo-kwang Kim
  • Publication number: 20200247843
    Abstract: Disclosed is a method for preparing a composition comprising factor VIII (FVIII) and von Willebrand factor (vWF), wherein the content of the von Willebrand factor (vWF) can be controlled by mixing the factor VIII (FVIII) with the von Willebrand factor (vWF) at an appropriate ratio after separately purifying the factor VIII (FVIII) and the von Willebrand factor (vWF) from plasma in a single process. The method can prepare and purify a composition comprising factor VIII (FVIII) and a varying content of von Willebrand factor (vWF) without increasing the amount of impurities other than the von Willebrand factor (vWF) compared to a method of purifying factor VIII (FVIII) separately, without significantly increasing the processing time (within 3 hours) compared to a method of purifying factor VIII (FVIII), and without changing the yield of factor VIII (FVIII).
    Type: Application
    Filed: October 26, 2018
    Publication date: August 6, 2020
    Inventors: Jee Won AHN, Kwan Young KO, Jeong Hye YOON, Seung-Ho BAEK, Min Jung KIM, Geun Hye YEO, Jeong-Ae LIM, Soo-kwang KIM
  • Patent number: 9902753
    Abstract: The present invention relates to a long-acting human growth hormone NexP-hGH protein and its production method. More specifically, it relates to a specific isoform of long-acting human growth hormone NexP-hGH protein in which human growth hormone is fused with a highly glycosylated alpha-1 antitrypsin mutant whereby long-acting properties in vivo are increased.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 27, 2018
    Assignees: CJ HEALTHCARE CORPORATION, ALTEOGEN, INC
    Inventors: Gil Bu Kang, Chung Min Lee, Jee Won Ahn, Dong Eok Lee, Chang Bong Jun, Won Jeong Lee, Sung Yoo Cho, Chi Hye Park, Ki Wan Kim, Yoon Jung Lee, Ji Hyun Moon, Hoo Keun Oh, Young Joon Park, Sang Hyun Lee, Hyoung Taek Lim, Soon Jae Park, Hye Shin Chung, Sang Mee Lee
  • Patent number: 9684711
    Abstract: A method may provide an agent service to a user terminal by including receiving a user instruction from the user terminal, determining whether at least one agent reply to at least one keyword included in the user instruction is able to be searched for in a database, providing at least one suggestive query to the user terminal to allow a search for the at least one agent reply, receiving at least one set of additional information with respect to the at least one suggestive query from the user terminal, and providing the at least one agent reply to the user terminal based on the at least one set of additional information.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: June 20, 2017
    Assignee: LG CNS CO., LTD.
    Inventors: Jee Won Ahn, Nam Kyu Kang, Dong Kuk Park, Sung Woo Park
  • Publication number: 20150126715
    Abstract: The present invention relates to a long-acting human growth hormone NexP-hGH protein and its production method. More specifically, it relates to a specific isoform of long-acting human growth hormone NexP-hGH protein in which human growth hormone is fused with a highly glycosylated alpha-1 antitrypsin mutant whereby long-acting properties in vivo are increased.
    Type: Application
    Filed: June 5, 2013
    Publication date: May 7, 2015
    Inventors: Gil Bu Kang, Chung Min Lee, Jee Won Ahn, Dong Eok Lee, Chang Bong Jun, Won Jeong Lee, Sung Yoo Cho, Chi Hye Park, Ki Wan Kim, Yoon Jung Lee, Ji Hyun Moon, Hoo Keun Oh, Young Joon Park, Sang Hyun Lee, Hyoung Taek Lim, Soon Jae Park, Hye Shin Chung, Sang Mee Lee
  • Publication number: 20150058373
    Abstract: A method may provide an agent service to a user terminal by including receiving a user instruction from the user terminal, determining whether at least one agent reply to at least one keyword included in the user instruction is able to be searched for in a database, providing at least one suggestive query to the user terminal to allow a search for the at least one agent reply, receiving at least one set of additional information with respect to the at least one suggestive query from the user terminal, and providing the at least one agent reply to the user terminal based on the at least one set of additional information.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Jee Won AHN, Nam Kyu Kang, Dong Kuk Park, Sung Woo Park
  • Patent number: 7901670
    Abstract: Provided is a process for purifying human interferon beta from a recombinant human interferon beta-containing culture comprising performing affinity chromatography and cation exchange chromatography, wherein the affinity chromatography includes: adsorbing the interferon beta-containing culture to an equilibrated affinity chromatography column, followed by washing with an equilibration buffer solution; washing the column with a washing buffer solution A of pH 6.5-7.5 containing 30-60 wt % of propylene glycol and a washing buffer solution B of pH 6.5-7.5 containing 10-30 wt % of propylene glycol and 1-2M NaCl; and eluting a human interferon beta-containing fraction with a buffer solution of pH 6.5-7.5 containing 40-60 wt % of propylene glycol and 1-2M NaCl.
    Type: Grant
    Filed: December 4, 2004
    Date of Patent: March 8, 2011
    Assignee: CJ Cheiljedang Corporation
    Inventors: Ji Sook Park, Jong Sang Chung, Min Ji Baek, Jee Won Ahn, Ki Wan Kim, Hyung Ki Park, Dong Eok Lee, Myung Suk Oh
  • Patent number: 7780960
    Abstract: Provided is a process for purifying human interferon beta from a recombinant human interferon beta-containing culture comprising performing affinity chromatography and reversed-phase high-performance liquid chromatography (RP-HPLC), wherein the affinity chromatography includes: adsorbing the interferon beta-containing culture to an equilibrated affinity chromatography column, followed by washing with an equilibration buffer solution; washing the column with a washing buffer solution A of pH 6.5-7.5 containing 30-60 wt % of propylene glycol and a washing buffer solution B of pH 6.5-7.5 containing 10-30 wt % of propylene glycol and 1-2M NaCl; and eluting a human interferon beta-containing fraction with a buffer solution of pH 6.5-7.5 containing 40-60 wt % of propylene glycol and 1-2M NaCl.
    Type: Grant
    Filed: December 4, 2004
    Date of Patent: August 24, 2010
    Assignee: CJ Cheiljedang Corporation
    Inventors: Ji Sook Park, Jong Sang Chung, Min Ji Baek, Jee Won Ahn, Ki Wan Kim, Hyung Ki Park, Dong Eok Lee, Myung Suk Oh