Patents by Inventor Min-Keun Oh

Min-Keun Oh 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).

  • I-and II-type crystals of L-A-glyceryl phosphoryl choline, and method for preparing same
    Patent number: 8981141
    Abstract: The present invention relates to I- and II-type crystals of L-?-glyceryl phosphoryl choline, and to a method for preparing same. More particularly, the present invention relates to noble I- and II-type anhydride crystals of L-?-glyceryl phosphoryl choline, which have a higher purity than conventional liquid L-?-glyceryl phosphoryl choline, and one advantage of which is that formulations and dosages of pharmaceuticals are easily modified, and another advantage of which is that the hygroscopicity of the crystals are much lower than that of conventional polymorphic crystals, providing excellent stability during storage. The present invention also relates to a method for preparing the I- and II-type crystals of L-?-glyceryl phosphoryl choline. The I-type crystal of L-?-glyceryl phosphoryl choline is characterized by having an onset temperature of 147° C. and an absorption peak of 150° C.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: March 17, 2015
    Assignee: Hanseochem Co., Ltd.
    Inventors: Min-Keun Oh, Ki-Nam Kim, Ki-Hyeong Seo, Dae-Gil Kwon
  • I-AND II-TYPE CRYSTALS OF L-A-GLYCERYL PHOSPHORYL CHOLINE, AND METHOD FOR PREPARING SAME
    Publication number: 20150065741
    Abstract: The present invention relates to I- and II-type crystals of L-?-glyceryl phosphoryl choline, and to a method for preparing same. More particularly, the present invention relates to noble I- and II-type anhydride crystals of L-?-glyceryl phosphoryl choline, which have a higher purity than conventional liquid L-?-glyceryl phosphoryl choline, and one advantage of which is that formulations and dosages of pharmaceuticals are easily modified, and another advantage of which is that the hygroscopicity of the crystals are much lower than that of conventional polymorphic crystals, providing excellent stability during storage. The present invention also relates to a method for preparing the I- and II-type crystals of L-?-glyceryl phosphoryl choline. The I-type crystal of L-?-glyceryl phosphoryl choline is characterized by having an onset temperature of 147° C. and an absorption peak of 150° C.
    Type: Application
    Filed: July 9, 2014
    Publication date: March 5, 2015
    Inventors: Min-Keun OH, Ki-Nam KIM, Ki-Hyeong SEO, Dae-Gil KWON
  • I- and II-type crystals of L-alpha-glyceryl phosphoryl choline, and method for preparing same
    Patent number: 8927755
    Abstract: The present invention relates to I- and II-type crystals of L-?-glyceryl phosphoryl choline, and to a method for preparing same. More particularly, the present invention relates to noble I- and II-type anhydride crystals of L-?-glyceryl phosphoryl choline, which have a higher purity than conventional liquid L-?-glyceryl phosphoryl choline, and one advantage of which is that formulations and dosages of pharmaceuticals are easily modified, and another advantage of which is that the hygroscopicity of the crystals are much lower than that of conventional polymorphic crystals, providing excellent stability during storage. The present invention also relates to a method for preparing the I- and II-type crystals of L-?-glyceryl phosphoryl choline.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: January 6, 2015
    Assignee: Hanseochem Co., Ltd.
    Inventors: Min-Keun Oh, Ki-Nam Kim, Ki-Hyeong Seo, Dae-Gil Kwon
  • I-AND II-TYPE CRYSTALS OF L-A-GLYCERYL PHOSPHORYL CHOLINE, AND METHOD FOR PREPARING SAME
    Publication number: 20130345464
    Abstract: The present invention relates to I- and II-type crystals of L-?-glyceryl phosphoryl choline, and to a method for preparing same. More particularly, the present invention relates to noble I- and II-type anhydride crystals of L-?-glyceryl phosphoryl choline, which have a higher purity than conventional liquid L-?-glyceryl phosphoryl choline, and one advantage of which is that formulations and dosages of pharmaceuticals are easily modified, and another advantage of which is that the hygroscopicity of the crystals are much lower than that of conventional polymorphic crystals, providing excellent stability during storage. The present invention also relates to a method for preparing the I- and II-type crystals of L-?-glyceryl phosphoryl choline.
    Type: Application
    Filed: February 22, 2012
    Publication date: December 26, 2013
    Applicant: Hanseochem co., ltd
    Inventors: Min-Keun Oh, Ki-Nam Kim, Ki-Hyeong Seo, Dae-Gil Kwon