Patents by Inventor Do-Woo Kwon

Do-Woo Kwon 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: 20230073516
    Abstract: The present disclosure provides an intraoral fast disintegrating formulation containing hemp oil extract or hemp powder extract as a raw material of the formulation, wherein the formulation contains a water-soluble binder, an inorganic material and a surfactant.
    Type: Application
    Filed: August 7, 2020
    Publication date: March 9, 2023
    Inventors: Hong-Ryeol JEON, Do-Woo KWON, Bong-Sang LEE, Su-Jun PARK, Myeongcheol KIL, Lee-Seul YANG
  • Patent number: 11266658
    Abstract: The present disclosure relates to an orally administered pharmaceutical formulation containing an inclusion complex formed as varenicline or a pharmaceutically acceptable salt thereof is included in cyclodextrin. The pharmaceutical formulation can improve convenience of medication by effectively masking the bitter taste of the drug and the irritation during swallowing, can provide the oxidation stability of varenicline and can improve the solubility of the drug.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: March 8, 2022
    Assignee: CTC BIO, INC.
    Inventors: Hong Ryeol Jeon, Do-Woo Kwon, Bong-Sang Lee, Seul Ki Meang, Su-Jun Park, Seong-Shin Kwak
  • Patent number: 11116769
    Abstract: The present disclosure relates to a film formulation for oral administration, containing tadalafil free base and a method of preparing the same, and a film may be provided with maximized dispersion stability of tadalafil free base in the film by the addition of a dispersion stabilizing agent in small amounts without unique fragrance or favor that may appear when other dispersion stabilizing agents known in the art are used, and an extremely low likelihood that a reagglomeration phenomenon of tadalafil free base particles will occur, and an amount of bubbles generated may be significantly reduced during a production process.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: September 14, 2021
    Assignee: CTC BIO, INC.
    Inventors: Hong Ryeol Jeon, Do-Woo Kwon, Bong-Sang Lee, Su-Jun Park, Bong-Geun Cha, Jun-Ki Kim, Jiyeong Han, Myeongcheol Kil
  • Publication number: 20200405714
    Abstract: The present disclosure relates to a film formulation for oral administration, containing tadalafil free base and a method of preparing the same, and a film may be provided with maximized dispersion stability of tadalafil free base in the film by the addition of a dispersion stabilizing agent in small amounts without unique fragrance or favor that may appear when other dispersion stabilizing agents known in the art are used, and an extremely low likelihood that a reagglomeration phenomenon of tadalafil free base particles will occur, and an amount of bubbles generated may be significantly reduced during a production process.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 31, 2020
    Inventors: Hong Ryeol JEON, Do-Woo KWON, Bong-Sang LEE, Su-Jun PARK, Bong-Geun CHA, Jun-Ki KIM, Jiyeong HAN, Myeongcheol KIL
  • Publication number: 20200085818
    Abstract: The present disclosure relates to a film formulation for oral administration, containing tadalafil free base and a method of preparing the same, and a film may be provided with maximized dispersion stability of tadalafil free base in the film by the addition of a dispersion stabilizing agent in small amounts without unique fragrance or favor that may appear when other dispersion stabilizing agents known in the art are used, and an extremely low likelihood that a reagglomeration phenomenon of tadalafil free base particles will occur, and an amount of bubbles generated may be significantly reduced during a production process.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 19, 2020
    Inventors: Hong Ryeol JEON, Do-Woo KWON, Bong-Sang LEE, Su-Jun PARK, Bong-Geun CHA, Jun-Ki KIM, Jiyeong HAN, Myeongcheol KIL
  • Publication number: 20200061078
    Abstract: The present disclosure relates to an orally administered pharmaceutical formulation containing an inclusion complex formed as varenicline or a pharmaceutically acceptable salt thereof is included in cyclodextrin. The pharmaceutical formulation can improve convenience of medication by effectively masking the bitter taste of the drug and the irritation during swallowing, can provide the oxidation stability of varenicline and can improve the solubility of the drug.
    Type: Application
    Filed: March 2, 2018
    Publication date: February 27, 2020
    Inventors: Hong Ryeol JEON, Do-Woo KWON, Bong-Sang LEE, Seul Ki MEANG, Su-Jun PARK, Seong-Shin KWAK
  • Publication number: 20190224208
    Abstract: The present invention relates to a pharmaceutical composition for treating, preventing or improving premature ejaculation, which is taken on demand prior to sexual activity, the composition comprising clomipramine hydrochloride in an amount of 14 to 16 mg, preferably about 15 mg, as an active ingredient. More preferably, the composition of the present invention further comprises pregelatinized starch and sodium starch glycolate. The pharmaceutical composition of the present invention can provide rapid onset of efficacy, reduce a dissolution (absorption) deviation according to the patient's gastrointestinal pH conditions and minimize side effects.
    Type: Application
    Filed: April 4, 2019
    Publication date: July 25, 2019
    Applicant: CTC Bio, Inc.
    Inventors: Hong-Ryeol Jeon, Do-Woo Kwon, Bong-Sang Lee, Seong-Shin Kwak, Sun-Ahe Lee, Hyun-Jung Park, Jeong-Hwa Yoo
  • Patent number: 10213437
    Abstract: The present invention relates to a pharmaceutical preparation for oral administration comprising, as an active ingredient, clomipramine or a pharmaceutically acceptable salt thereof; and a cation exchange resin and an anion polymer as a taste masking agent, wherein the pharmaceutical preparation can be orally administered even while comprising a pharmaceutically effective amount of clomipramine because the unique tastes of clomipramine, particularly, all of the bitter taste, spicy taste and burning taste are effectively masked, and thus the convenience of drug intake and portability is improved, and a method for manufacturing thereof.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: February 26, 2019
    Assignee: CTC BIO, INC.
    Inventors: Hong Ryeol Jeon, Do-Woo Kwon, Bong-Sang Lee, Su-Jun Park, Jiyeong Han, Myeongcheol Kil, Min Seop Kim
  • Patent number: 10045993
    Abstract: The present invention relates to a pharmaceutical preparation comprising entecavir as an active ingredient, wherein an antioxidizing agent is added to enhance stability of entecavir, and a method for preparing the same. According to the present invention, the invention has an effect that entecavir can be stably maintained in a pharmaceutical preparation containing a certain amount or more of moisture by adding the antioxidizing agent, thereby a pharmaceutical preparation can be provided as a formulation containing a certain amount or more of moisture, for example, an orally disintegrating film formulation.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: August 14, 2018
    Assignee: CTC BIO, INC.
    Inventors: Hong Ryeol Jeon, Do-Woo Kwon, Bong-Sang Lee, Su-Jun Park, Jiyeong Han, Myeongcheol Kil, Min Seop Kim
  • Publication number: 20170151254
    Abstract: The present invention relates to a pharmaceutical preparation for oral administration comprising, as an active ingredient, clomipramine or a pharmaceutically acceptable salt thereof; and a cation exchange resin and an anion polymer as a taste masking agent, wherein the pharmaceutical preparation can be orally administered even while comprising a pharmaceutically effective amount of clomipramine because the unique tastes of clomipramine, particularly, all of the bitter taste, spicy taste and burning taste are effectively masked, and thus the convenience of drug intake and portability is improved, and a method for manufacturing thereof.
    Type: Application
    Filed: May 8, 2015
    Publication date: June 1, 2017
    Inventors: Hong Ryeol JEON, Do-Woo KWON, Bong-Sang LEE, Su-Jun PARK, Jiyeong HAN, Myeongcheol KIL, Min Seop KIM
  • Publication number: 20170136025
    Abstract: The present invention relates to a pharmaceutical preparation comprising entecavir as an active ingredient, wherein an antioxidizing agent is added to enhance stability of entecavir, and a method for preparing the same. According to the present invention, the invention has an effect that entecavir can be stably maintained in a pharmaceutical preparation containing a certain amount or more of moisture by adding the antioxidizing agent, thereby a pharmaceutical preparation can be provided as a formulation containing a certain amount or more of moisture, for example, an orally disintegrating film formulation.
    Type: Application
    Filed: June 22, 2015
    Publication date: May 18, 2017
    Inventors: Hong Ryeol JEON, Do-Woo KWON, Bong-Sang LEE, Su-Jun PARK, Jiyeong HAN, Myeongcheol KIL, Min Seop KIM
  • Patent number: 9492446
    Abstract: The present invention relates to a method for preparing an itraconazole-containing solid dispersion. The itraconazole-containing solid dispersion according to the preparing method of the present invention has both improved solubility and rapid dissolution rate so that it has an excellent bioavailability. The itraconazole-containing solid dispersion of the present invention is also independent of pH variation of human stomach so that it can minimize the absorption variation of intra- and inter-individuals. In addition, the itraconazole-containing solid dispersion according to the preparing method of the present invention is stable for a long time. The present invention also provides an economical and environment-friendly method for manufacturing an itraconazole-containing composition because the method adds a lactic acid in a solution comprising itraconazole to decrease the amount of an organic solvent needed to dissolve itraconazole.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: November 15, 2016
    Assignees: CTC BIO, Inc.
    Inventors: Hong-Ryeol Jeon, Se-Geun Yu, Bong-Sang Lee, Se-Heum Oh, Jeong-Seo Park, Dong-Ryun Oh, Do-Woo Kwon
  • Patent number: 9339511
    Abstract: The present invention provides choline alfoscerate-containing pharmaceutical preparations which have improved storage-stability and are easily taken. The present invention also provides a method for manufacturing pharmaceutical preparations comprising choline alfoscerate, which is easy and simple and is performed by normal manufacturing equipments.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: May 17, 2016
    Assignee: CTC Bio, Inc.
    Inventors: Bong-Sang Lee, Su-Jun Park, Do-Woo Kwon, Hong-Ryeol Jeon
  • Publication number: 20160081990
    Abstract: The present invention provides a method for producing a film which contains a tasteless donepezil-free base, has an appropriate size and thickness, has flexibility for providing stability when handled so as to not easily tear, and has a uniformly dispersed donepezil-free base. In addition, the present invention provides a film containing the donepezil-free base produced through the method.
    Type: Application
    Filed: May 12, 2014
    Publication date: March 24, 2016
    Applicant: CTC BIO, INC.
    Inventors: Hong Ryeol JEON, Do-Woo KWON, Bong-Sang LEE, Su-Jun PARK, Bong-Geun CHA, Jun-Ki KIM, Ji-yeong HAN, Myeong-cheol KIL
  • Publication number: 20160074396
    Abstract: The present disclosure relates to a film formulation for oral administration, containing tadalafil free base and a method of preparing the same, and a film may be provided with maximized dispersion stability of tadalafil free base in the film by the addition of a dispersion stabilizing agent in small amounts without unique fragrance or favor that may appear when other dispersion stabilizing agents known in the art are used, and an extremely low likelihood that a reagglomeration phenomenon of tadalafil free base particles will occur, and an amount of bubbles generated may be significantly reduced during a production process.
    Type: Application
    Filed: April 11, 2014
    Publication date: March 17, 2016
    Applicant: CTC BIO, INC.
    Inventors: Hong Ryeol JEON, Do-Woo KWON, Bong-Sang LEE, Su-Jun PARK, Bong-Geun CHA, Jun-Ki KIM, Jiyeong HAN, Myeongcheol KIL
  • Publication number: 20140200210
    Abstract: The present invention relates to a pharmaceutical composition for treating, preventing or improving premature ejaculation, which is taken on demand prior to sexual activity, the composition comprising clomipramine hydrochloride in an amount of 14 to 16 mg, preferably about 15 mg, as an active ingredient. More preferably, the composition of the present invention further comprises pregelatinized starch and sodium starch glycolate. The pharmaceutical composition of the present invention can provide rapid onset of efficacy, reduce a dissolution (absorption) deviation according to the patient's gastrointestinal pH conditions and minimize side effects.
    Type: Application
    Filed: June 28, 2012
    Publication date: July 17, 2014
    Applicant: CTC BIO, INC.
    Inventors: Hong-Ryeol Jeon, Do-Woo Kwon, Bong-Sang Lee, Seong-Shin Kwak, Sun-Ahe Lee, Hyun-Jung Park, Jeong-Hwa Yoo
  • Publication number: 20140100192
    Abstract: The present invention provides choline alfoscerate-containing pharmaceutical preparations which have improved storage-stability and are easily taken. The present invention also provides a method for manufacturing pharmaceutical preparations comprising choline alfoscerate, which is easy and simple and is performed by normal manufacturing equipments.
    Type: Application
    Filed: December 12, 2013
    Publication date: April 10, 2014
    Applicant: CTC BIO, INC.
    Inventors: Bong-Sang LEE, Su-Jun PARK, Do-Woo KWON, Hong-Ryeol JEON
  • Patent number: 8633176
    Abstract: The present invention provides choline alfoscerate-containing pharmaceutical preparations which have improved storage-stability and are easily taken. The present invention also provides a method for manufacturing pharmaceutical preparations comprising choline alfoscerate, which is easy and simple and is performed by normal manufacturing equipments.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: January 21, 2014
    Assignee: CTC Bio, Inc.
    Inventors: Bong-Sang Lee, Su-Jun Park, Do-Woo Kwon, Hong-Ryeol Jeon
  • Publication number: 20110184024
    Abstract: The present invention relates to esomeprazole free base or its alkali salt-containing composition which stability is improved and is easy to manufacture.
    Type: Application
    Filed: September 16, 2008
    Publication date: July 28, 2011
    Applicant: CTC BIO, INC.
    Inventors: Seong-Shin Kwak, Bong-Sang Lee, Do-Woo Kwon, Hong Ryeol Jeon, Ji-Yun Moon, Dong-Jin Lee
  • Publication number: 20100311692
    Abstract: The present invention provides choline alfoscerate-containing pharmaceutical preparations which have improved storage-stability and are easily taken. The present invention also provides a method for manufacturing pharmaceutical preparations comprising choline alfoscerate, which is easy and simple and is performed by normal manufacturing equipments.
    Type: Application
    Filed: February 13, 2009
    Publication date: December 9, 2010
    Applicant: CTC BIO, INC.
    Inventors: Bong-Sang Lee, Su-Jun Park, Do-Woo Kwon, Hong-Ryeol Jeon