Patents by Inventor Yu-Yan Jan

Yu-Yan Jan 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).

  • Thermosensitive biodegradable copolymer
    Patent number: 7179867
    Abstract: A thermo-sensitve copolymer of following formula; is disclosed; wherein R1 is hydrogen, or —C(?O)—R2; R2 is C7-30 alkyl substituted or unsubstituted with functional groups; R3 is hydrogen, or C1-6 alkyl; and x, y or z individually is an integer greater than 0. The thermo-sensitive copolymers disclosed here are easy to be implanted into a human body through injection. The biodegradability is greatly improved and the cytotoxicity of the copolymers is low.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: February 20, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Ken-Yuan Chang, Ming-Hsi Yeh, Ming-Fa Hsieh, Pei Kan, Yu-Yan Jan, Shu-Hua Jan, Xi-Zhang Lin
  • Thermosensitive biodegradable copolymer
    Publication number: 20050113531
    Abstract: A thermo-sensitve copolymer of following formula; is disclosed; wherein R1 is hydrogen, or —C(?O)—R2; R2 is C7-30 alkyl substituted or unsubstituted with functional groups; R3 is hydrogen, or C1-6 alkyl; and x, y or z individually is an integer greater than 0. The thermo-sensitive copolymers disclosed here are easy to be implanted into a human body through injection. The biodegradability is greatly improved and the cytotoxicity of the copolymers is low.
    Type: Application
    Filed: November 26, 2003
    Publication date: May 26, 2005
    Applicant: Industrial Technology Research Institute
    Inventors: Ken-Yuan Chang, Ming-Hsi Yeh, Ming-Fa Hsieh, Pei Kan, Yu-Yan Jan, Shu-Hua Jan, Xi-Zhang Lin