Patents by Inventor Sam Young Lee

Sam Young 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: 9211343
    Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 15, 2015
    Assignee: BIONEER CORPORATION
    Inventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
  • Publication number: 20140371432
    Abstract: The present invention provides a double-stranded RNA structure, which comprises a polymer compound covalently bonded to a double-helix oligo RNA useful for the treatment of diseases, particularly cancer, in order to enhance the delivery of the double-helix oligo RNA, and further comprises a target-specific ligand bonded thereto, a preparation method thereof, and a technique of delivering the double-helix oligo RNA in a target-specific manner using the RNA structure. A nanoparticle composed of the ligand-bonded double-helix oligo RNA structures can efficiently deliver the double-helix oligo RNA to a target, and thus can exhibit the activity of the double-helix oligo RNA even when the double-helix oligo RNA is administered at a relatively low concentration. Also, it can prevent the non-specific delivery of the double-helix oligo RNA into other organs and cells.
    Type: Application
    Filed: December 14, 2012
    Publication date: December 18, 2014
    Inventors: Jeiwook Chae, Boram Han, Han-na Kim, Han Oh Park, Pyoung Oh Yoon, Sun Gi Kim, Kwang-Ju Jung, Taewoo Kwon, Jong Deok Choi, Sam Young Lee, Eun-Jung Jung
  • Publication number: 20140350233
    Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.
    Type: Application
    Filed: May 30, 2014
    Publication date: November 27, 2014
    Applicant: BIONEER CORPORATION
    Inventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
  • Publication number: 20140350232
    Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.
    Type: Application
    Filed: May 30, 2014
    Publication date: November 27, 2014
    Applicant: BIONEER CORPORATION
    Inventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
  • Patent number: 8779114
    Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: July 15, 2014
    Assignee: Bioneer Corporation
    Inventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
  • Patent number: 8772472
    Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: July 8, 2014
    Assignee: Bioneer Corporation
    Inventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
  • Publication number: 20130096288
    Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.
    Type: Application
    Filed: September 13, 2012
    Publication date: April 18, 2013
    Applicant: Bioneer Corporation
    Inventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
  • Publication number: 20120108803
    Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.
    Type: Application
    Filed: May 13, 2010
    Publication date: May 3, 2012
    Applicant: BIONEER CORPORATION
    Inventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee