Patents by Inventor Bong-Geun Cha

Bong-Geun Cha 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: 20230114380
    Abstract: A cerium oxide nanocomplex, a method for preparing the cerium oxide nanocomplex, a composition containing the cerium oxide nanocomplex as an active ingredient, and a method for preventing or treating inflammatory or autoimmune diseases. The composition may be used as an efficient nanoparticle therapeutic composition by applying a biocompatible dispersion stabilizer composed of an optimal combination to significantly improve the biomedical stability, biocompatibility, and efficiency of the production process of nanoparticles while maintaining the intrinsic pharmacological effect of the nanoparticles.
    Type: Application
    Filed: March 25, 2021
    Publication date: April 13, 2023
    Applicant: CENYX BIOTECH INC.
    Inventors: Seung-Hoon LEE, Bong Geun CHA, Dong-Wan KANG
  • Patent number: 11246944
    Abstract: Disclosed are a ceria nanocomposite for biomedical treatment, including a ceria nanoparticle; and a pharmaceutical composition. The disclosed ceria nanocomposite for biomedical treatment includes a ceria nanoparticle and a surface modification layer arranged on the surface of the ceria nanoparticle, wherein the surface modification layer includes a polyethylene glycol residue, and in the ceria nanoparticle, the content of Ce3+ is greater than the content of Ce4+.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: February 15, 2022
    Assignee: Cenyx Biotech Inc.
    Inventors: Seung-Hoon Lee, Han-Gil Jeong, Do Yeon Kim, Dong-Wan Kang, Jaeyun Kim, Bong Geun Cha
  • Patent number: 11123301
    Abstract: Provided are a ceria nanocomposite including a ceria nanoparticle for treating subarachnoid hemorrhage, a method of preparing the same, and a pharmaceutical composition including the ceria nanocomposite. The ceria nanocomposite for treating subarachnoid hemorrhage disclosed herein includes a ceria nanoparticle and a surface modified layer disposed on a surface of the ceria nanoparticle, wherein the surface modified layer includes a polyethylene glycol residue.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: September 21, 2021
    Assignee: Cenyx Biotech Inc.
    Inventors: Seung-Hoon Lee, Han-Gil Jeong, Do Yeon Kim, Dong-Wan Kang, Jaeyun Kim, Bong Geun Cha
  • 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: 20190381187
    Abstract: Disclosed are a ceria nanocomposite for biomedical treatment, including a ceria nanoparticle; and a pharmaceutical composition. The disclosed ceria nanocomposite for biomedical treatment includes a ceria nanoparticle and a surface modification layer arranged on the surface of the ceria nanoparticle, wherein the surface modification layer includes a polyethylene glycol residue, and in the ceria nanoparticle, the content of Ce3+ is greater than the content of Ce4+.
    Type: Application
    Filed: January 11, 2017
    Publication date: December 19, 2019
    Applicant: Cenyx Biotech Inc.
    Inventors: Seung-Hoon Lee, Han-Gil Jeong, Do Yeon Kim, Dong-Wan Kang, Jaeyun Kim, Bong Geun Cha
  • Publication number: 20190240161
    Abstract: Provided are a ceria nanocomposite including a ceria nanoparticle for treating subarachnoid hemorrhage, a method of preparing the same, and a pharmaceutical composition including the ceria nanocomposite. The ceria nanocomposite for treating subarachnoid hemorrhage disclosed herein includes a ceria nanoparticle and a surface modified layer disposed on a surface of the ceria nanoparticle, wherein the surface modified layer includes a polyethylene glycol residue.
    Type: Application
    Filed: October 21, 2016
    Publication date: August 8, 2019
    Applicants: Cenyx Biotech Inc., Seoul National University Hospital, Research & Business Foundation Sungkyunkwan University
    Inventors: Seung-Hoon Lee, Han-Gil Jeong, Do Yeon Kim, Dong-Wan Kang, Jaeyun Kim, Bong Geun Cha
  • Patent number: 9907759
    Abstract: The present invention provides a method for preparing a film comprising a high amount of a sildenafil free base uniformly dispersed therein and having a suitable thickness and size, as well as flexibility providing good handling stability and being not prone to breaking. The present invention also provides a sildenafil free base-containing film prepared from the method.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: March 6, 2018
    Assignee: CTC Bio, Inc.
    Inventors: Hong-Ryeol Jeon, Bong-Sang Lee, Su-Jun Park, Bong-Geun Cha, Jun-Ki Kim
  • 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: 20130323307
    Abstract: The present invention provides a method for preparing a film comprising a high amount of a sildenafil free base uniformly dispersed therein and having a suitable thickness and size, as well as flexibility providing good handling stability and being not prone to breaking. The present invention also provides a sildenafil free base-containing film prepared from the method.
    Type: Application
    Filed: February 13, 2012
    Publication date: December 5, 2013
    Applicant: CTC BIO, INC.
    Inventors: Hong-Ryeol Jeon, Bong-Sang Lee, Su-Jun Park, Bong-Geun Cha, Jun-Ki Kim