Patents by Inventor Byung-Goo Lee

Byung-Goo Lee 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: 9328115
    Abstract: Provided is a process for the preparation of meropenem trihydrate in high purity and high yield, including using a dry methanol solvate of meropenem, which can remarkably reduce the amount of residual solvents in the resulting product, thereby obtain meropenem trihydrate in high purity.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: May 3, 2016
    Assignee: DAEWOONG PHARMACEUTICAL CO., LTD.
    Inventors: Soo-Jin Choi, Byung-Goo Lee, Hee-Kyoon Yoon, Sung-Woo Park, Sun-Ah Jun, Kyung-Ho Lee, Byung-Jo Lim
  • Patent number: 9233963
    Abstract: The present invention relates to an improved method for synthesizing meropenem trihydrate[(1R,5S,6S)-2-[((2?S,4?S)-2?-dimethylaminocarbozyl)pyrrolidin-4?-ylthio]-6-[(R)-1-hydroxyethyl]-1-methylcarbapen-2-em-3-carboxylic acid, trihydrate], which is a novel carbapenem antibiotic.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: January 12, 2016
    Assignees: DAEWOONG PHARMACEUTICAL CO., LTD., DAEWOONG BIO, INC.
    Inventors: Yoon Seok Song, Sung Woo Park, Yeon Jung Yoon, Hee Kyoon Yoon, Seong Cheol Moon, Byung Goo Lee, Soo Jin Choi, Sun Ah Jun
  • Publication number: 20150353554
    Abstract: Provided is a process for the preparation of meropenem trihydrate in high purity and high yield, including using a dry methanol solvate of meropenem, which can remarkably reduce the amount of residual solvents in the resulting product, thereby obtain meropenem trihydrate in high purity.
    Type: Application
    Filed: November 21, 2013
    Publication date: December 10, 2015
    Applicant: DAEWOONG PHARMACEUTICAL CO., LTD.
    Inventors: Soo-Jin CHOI, Byung-Goo LEE, Hee-Kyoon YOON, Sung-Woo PARK, Sun-Ah JUN, Kyung-Ho LEE, Byung-Jo LIM
  • Patent number: 9169257
    Abstract: The present invention relates to novel Forms A, B, C, D, E, F and G of crystalline 9-[2-[phosphonomethoxy]ethyl]adenine bis-pivaloyloxymethyl ester, i.e., adefovir dipivoxil, and processes for preparing them. According to the present invention, said novel crystal forms having a high purity can be obtained by a simple method and in a high yield.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: October 27, 2015
    Assignees: Daewoong Pharmaceutical Co., Ltd., Daewoong Bio Inc.
    Inventors: Soo Jin Choi, Byung Goo Lee, Seong Soo Oh, Yong Tae Kim, Kwang Joo Kim, Hye Jin Kim
  • Patent number: 9040572
    Abstract: This invention relates to a method of preparing a benzoimidazole derivative at high purity and high yield so as to enable the production of the benzoimidazole derivative compound as an antagonist against a vanilloid reactor-1, and particularly to a method of preparing a benzoimidazole derivative at high purity and high yield, wherein the benzoimidazole derivative is synthesized using a novel intermediate, namely, benzaldehyde, and thereby the preparation process is simple so that it can be applied to production.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: May 26, 2015
    Assignee: Daewoong Pharmaceutical Co., Ltd.
    Inventors: In Woo Kim, Ji Duck Kim, Hong Chul Yoon, Hee Kyoon Yoon, Byung Goo Lee, Joon Hwan Lee, Young Mook Lim, Soo Jin Choi
  • Patent number: 8675270
    Abstract: The present invention may relate to a scanning micromirror. The scanning micromirror can include a substrate having an open region; a micro plate provided in the open region; a first gimbal provided between the substrate and the mirror plate, and including a first curvature curved toward the mirror plate along an X-axis of the open region; a second gimbal including a second curvature formed along the first curvature of the first gimbal; a first elastic body configured to connect the substrate with the first curvature of the first gimbal; a second elastic body configured to connect the first gimbal with the second gimbal along a Y-axis of the open region; and a third elastic body configured to connect the second gimbal with the mirror plate along the Y-axis of the open region.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: March 18, 2014
    Assignee: LG Electronics Inc.
    Inventors: Dong June Choi, Byung Goo Lee, Tae Sik Kim, Tae Sun Lim
  • Patent number: 8541620
    Abstract: The present invention relates to a method for selectively crystallizing Z isomer of iopromide of formula (I) comprising a) dissolving a crude iopromide comprising a mixture of E and Z isomers or a concentrate thereof in an alcohol, and b) heating the resulting alcohol solution to obtain crystalline of Z isomer of iopromide; and a method for preparing a composition comprising the crystalline Z isomer of iopromide.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: September 24, 2013
    Assignee: Daewoong Pharmaceutical Co., Ltd.
    Inventors: Soo-Jin Choi, Byung-Goo Lee, Han-Kuk Lee, Young-Mook Lim, Wol-Young Kim, Joon-Hwan Lee
  • Publication number: 20130231477
    Abstract: This invention relates to a method of preparing a benzoimidazole derivative at high purity and high yield so as to enable the production of the benzoimidazole derivative compound as an antagonist against a vanilloid reactor-1, and particularly to a method of preparing a benzoimidazole derivative at high purity and high yield, wherein the benzoimidazole derivative is synthesized using a novel intermediate, namely, benzaldehyde, and thereby the preparation process is simple so that it can be applied to production.
    Type: Application
    Filed: September 27, 2011
    Publication date: September 5, 2013
    Applicant: DAEWOONG PHARMACEUTICAL CO., LTD.
    Inventors: In Woo Kim, Ji Duck Kim, Hong Chul Yoon, Hee Kyoon Yoon, Byung Goo Lee, Joon Hwan Lee, Young Mook Lim, Soo Jin Choi
  • Publication number: 20120250124
    Abstract: The present invention may relate to a scanning micromirror. The scanning micromirror can include a substrate having an open region; a micro plate provided in the open region; a first gimbal provided between the substrate and the mirror plate, and including a first curvature curved toward the mirror plate along an X-axis of the open region; a second gimbal including a second curvature formed along the first curvature of the first gimbal; a first elastic body configured to connect the substrate with the first curvature of the first gimbal; a second elastic body configured to connect the first gimbal with the second gimbal along a Y-axis of the open region; and a third elastic body configured to connect the second gimbal with the mirror plate along the Y-axis of the open region.
    Type: Application
    Filed: August 26, 2010
    Publication date: October 4, 2012
    Inventors: Dong June Choi, Byung Goo Lee, Tae Sik Kim, Tae Sun Lim
  • Publication number: 20120101273
    Abstract: The present invention relates to novel Forms A, B, C, D, E, F and G of crystalline 9-[2-[phosphonomethoxy]ethyl]adenine bis-pivaloyloxymethyl ester, i.e., adefovir dipivoxil, and processes for preparing them. According to the present invention, said novel crystal forms having a high purity can be obtained by a simple method and in a high yield.
    Type: Application
    Filed: March 26, 2010
    Publication date: April 26, 2012
    Applicant: Novel Crystal Forms of Adefovir Dipivoxil and Processes for Preparing the Same
    Inventors: Soo Jin Choi, Byung Goo Lee, Seong Soo Oh, Yong Tae Kim, Kwang Joo Kim, Hye Jin Kim
  • Publication number: 20120065392
    Abstract: The present invention relates to an improved method for synthesizing meropenem trihydrate [(1R,5S,6S)-2-[((2?S,4?S)-2?-dimethylaminocarbozyl)pyrrolidin-4?-ylthio]-6-[(R)-1-hydroxyethyl]-1-methylcarbapen-2-em-3-carboxylic acid, trihydrate], which is a novel carbapenem antibiotic.
    Type: Application
    Filed: March 11, 2010
    Publication date: March 15, 2012
    Applicants: DAEWOONG BIO INC., DAEWOONG PHARMACEUTICAL CO., LTD.
    Inventors: Yoon Seok Song, Sung Woo Park, Yeon Jung Yoon, Hee Kyoon Yoon, Seong Cheol Moon, Byung Goo Lee, Soo Jin Choi, Sun Ah Jun
  • Publication number: 20110245347
    Abstract: The present invention relates to a method for selectively crystallizing Z isomer of iopromide of formula (I) comprising a) dissolving a crude iopromide comprising a mixture of E and Z isomers or a concentrate thereof in an alcohol, and b) heating the resulting alcohol solution to obtain crystalline of Z isomer of iopromide; and a method for preparing a composition comprising the crystalline Z isomer of iopromide.
    Type: Application
    Filed: October 12, 2009
    Publication date: October 6, 2011
    Applicant: DAEWOONG PHARMACEUTICAL CO., LTD.
    Inventors: Soo-Jin Choi, Byung-Goo Lee, Han-Kuk Lee, Young-Mook Lim, Wol-Young Kim, Joon-Hwan Lee