Patents Examined by P. Ponnahuri
  • Toxin conjugates
    Patent number: 6103236
    Abstract: The present invention relates to a toxin conjugate in which a residue derived from a compound having an affinity for a target cell is bound to a toxin through a spacer comprising polyalkylene glycol and dipeptide.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: August 15, 2000
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Toshiyuki Suzawa, Motoo Yamasaki, Satoru Nagamura, Hiromitsu Saito, So Ohta, Nobuo Hanai