Patents Assigned to Pegsphere Co., Ltd.
  • Peptides having protected amines of untargeted sites, methods for production thereof and of specifically conjugated PEG peptides using the same
    Patent number: 7662915
    Abstract: The present invention relates to synthetic peptides having selectively protected amines of untargeted sites and to methods for production thereof and for specifically conjugating PEG to targeted sites of the synthetic peptides using the same. The present invention provides a much higher yield of PEG conjugated peptides in which PEG is specifically combined to amines at targeted sites.
    Type: Grant
    Filed: January 18, 2003
    Date of Patent: February 16, 2010
    Assignee: Pegsphere Co., Ltd.
    Inventors: Sang Deuk Lee, Kang Choon Lee, Dong Hee Na, Yu Seok Youn
  • Peptides having protected amines of untargeted sites, methods for production thereof and of specifically conjugated peg peptides using the same
    Publication number: 20060063914
    Abstract: The present invention relates to synthetic peptides having selectively protected amines of untargeted sites and to methods for production thereof and for specifically conjugating PEG to targeted sites of the synthetic peptides using the same. The present invention provides a much higher yield of PEG conjugated peptides in which PEG is specifically combined to amines at targeted sites.
    Type: Application
    Filed: January 18, 2003
    Publication date: March 23, 2006
    Applicant: PEGSPHERE CO., LTD.
    Inventors: Sang Lee, Kang Choon Lee, Dong Hee Na, Yu Seok Youn