Patents Assigned to CnPharm Co., Ltd.
  • Patent number: 12419961
    Abstract: Synthesizing a docetaxel-aconitic anhydride conjugate using docetaxel, including: mixing aconitic anhydride with a chlorinating reagent to produce a first mixture; dissolving the first mixture in an organic solvent to produce a dissolved mixture; stirring the dissolved mixture; evaporating the organic solvent from the dissolved mixture to produce a second mixture; washing the second mixture with an impurity remover to remove impurities and to produce an aconitic anhydride chloride solution; and mixing the docetaxel with the produced aconitic anhydride chloride solution to produce the docetaxel-aconitic anhydride conjugate.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: September 23, 2025
    Assignee: CNPharm Co., Ltd.
    Inventors: Hojun Kim, Geun-Woo Jin
  • Patent number: 12409229
    Abstract: Synthesizing a drug-organic-acid-anhydride conjugate using docetaxel as a drug, including: mixing aconitic anhydride with a chlorinating reagent to produce a first mixture; dissolving the first mixture in an organic solvent to produce a dissolved mixture; stirring the dissolved mixture; evaporating the organic solvent from the dissolved mixture to produce a second mixture; washing the second mixture with an impurity remover to remove impurities and to produce an aconitic anhydride chloride solution; and mixing the docetaxel with the aconitic anhydride chloride solution to produce the drug-organic-acid-anhydride conjugate.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: September 9, 2025
    Assignee: CNPharm Co., Ltd.
    Inventors: Hojun Kim, Kwang Sik Park, Guen-Woo Jin
  • Publication number: 20250235424
    Abstract: The present invention relates to a pharmaceutical composition containing docetaxel or a pharmaceutically acceptable salt thereof and a method for preparing the same, which can improve the low body absorption rate of docetaxel.
    Type: Application
    Filed: December 20, 2022
    Publication date: July 24, 2025
    Applicants: WEBIOTREE CO., LTD, CNPHARM CO., LTD.
    Inventors: Ho Jun KIM, Ki Yeok KIM, Geun Woo JIN
  • Publication number: 20250177419
    Abstract: The present invention relates to a pharmaceutical composition containing niclosamide or a pharmaceutically acceptable salt thereof and a method for preparing the same, which can improve the low body absorption rate of niclosamide.
    Type: Application
    Filed: March 8, 2023
    Publication date: June 5, 2025
    Applicants: WEBIOTREE CO., LTD, CNPHARM CO., LTD.
    Inventors: Ho Jun KIM, Ki Yeok KIM, Geun Woo JIN
  • Patent number: 12297213
    Abstract: The present invention relates to a metal hydroxide complex including the multilayer hydroxide structure of Chemical Formula 1, including a base layer, a surface layer and an active ingredient, a metal hydroxide complex manufactured by subjecting an active ingredient and a metal hydroxide structure precursor to coprecipitation through a precipitation reaction using an alcohol and water, and a method of manufacturing the same.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: May 13, 2025
    Assignees: CNPHARM CO., LTD., HYUNDAI BIOSCIENCE CO., LTD.
    Inventors: Ho-Jun Kim, Ki-Yeok Kim
  • Patent number: 11969440
    Abstract: The present invention relates to a metal (hydr)oxide composite comprising a poorly soluble drug, a method for manufacturing same, and a pharmaceutical composition comprising same.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: April 30, 2024
    Assignees: Webiotree Co., Ltd., CNPharm Co., Ltd.
    Inventors: Ho Jun Kim, Geun Woo Jin, Ki Yeok Kim
  • Patent number: 11912829
    Abstract: The present invention relates to a new class of cationic linear polyphosphazenes bearing as side groups a hydrophilic poly(ethylene glycol) and a spacer group selected from the group consisting of lysine, oligopeptides containing lysine, amino-ethanol, amino-propanol, amino-butanol, amino-pentanol and amino-hexanol, and the polyphosphazene-drug conjugates comprising hydrophobic anticancer drugs by covalent bonding and the preparation methods thereof. The present polyphosphazene-drug conjugates exhibit outstanding tumor selectivity and low toxicity.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 27, 2024
    Assignee: CNPHARM CO., LTD.
    Inventors: Youn Soo Sohn, Yong Joo Jun, Prakash Gouda Avaji
  • Publication number: 20230040651
    Abstract: The present invention relates to a metal (hydr)oxide composite comprising a poorly soluble drug, a method for manufacturing same, and a pharmaceutical composition comprising same.
    Type: Application
    Filed: August 18, 2022
    Publication date: February 9, 2023
    Applicants: Webiotree Co., Ltd., Cnpharm Co., Ltd.
    Inventors: Ho Jun KIM, Geun Woo JIN, Ki Yeok Kim
  • Patent number: 10590243
    Abstract: The present invention relates to a new class of cationic linear polyphosphazenes bearing as side groups a hydrophilic poly(ethylene glycol) and a spacer group selected from the group consisting of lysine, oligopeptides containing lysine, amino-ethanol, amino-propanol, amino-butanol, amino-pentanol and amino-hexanol, and the polyphosphazene-drug conjugates comprising hydrophobic anticancer drugs by covalent bonding and the preparation methods thereof. The present polyphosphazene-drug conjugates exhibit outstanding tumor selectivity and low toxicity.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: March 17, 2020
    Assignee: CNPHARM CO., LTD.
    Inventors: Youn Soo Sohn, Yong Joo Jun, Prakash Gouda Avaji
  • Patent number: 10584214
    Abstract: The present invention relates to a new class of cationic linear polyphosphazenes bearing as side groups a hydrophilic poly(ethylene glycol) and a spacer group selected from the group consisting of lysine, oligopeptides containing lysine, amino-ethanol, amino-propanol, amino-butanol, amino-pentanol and amino-hexanol, and the polyphosphazene-drug conjugates comprising hydrophobic anticancer drugs by covalent bonding and the preparation methods thereof. The present polyphosphazene-drug conjugates exhibit outstanding tumor selectivity and low toxicity.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: March 10, 2020
    Assignee: CNPHARM CO., LTD.
    Inventors: Youn Soo Sohn, Yong Joo Jun, Prakash Gouda Avaji
  • Publication number: 20130266661
    Abstract: The present invention relates to an amphiphilic cyclic phosphazene trimer which is biocompatible and a method for preparing the same. The present invention also relates to pharmaceutical formulations of hydrophobic drugs that are micelle-encapsulated by the amphiphilic cyclic phosphazene trimer and a method for preparing the same.
    Type: Application
    Filed: December 16, 2011
    Publication date: October 10, 2013
    Applicant: CNPHARM CO., LTD.
    Inventors: Youn Soo Sohn, Yong Joo Jun
  • Patent number: 8344173
    Abstract: A cyclotriphosphazene represented by Formula 1 prepared by introducing a dendritic tetrapeptide and a hydrophilic polyethylene glycol into a cyclotriphosphazene ring, a method of preparing the same, and a drug carrier including the cyclotriphosphazene of Formula 1. The compound according to the present invention may form a strong molecular hydrogel in a very low concentration of 2 w/w % or less. Furthermore, the hydrogel prepared using the compound of Formula 1 exhibits biodegradability, thermosensitivity at around body temperature, biocompatibility with protein drugs, and an easy way to prepare along with a sustained release property without any burst effect in the early stage of release. Therefore, the present cyclotriphosphazene molecular hydrogel may be efficiently used as a drug carrier for a sustained release of a drug, particularly, a protein drug.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: January 1, 2013
    Assignee: CnPharm Co., Ltd.
    Inventors: Youn Soo Sohn, Yong Joo Jun, Sung Mo Choi