Patents by Inventor E. Balasubramaniam

E. Balasubramaniam 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: 6599648
    Abstract: A method of preparing a compound of formula I is described. In this compound, each of R1-R6 is, independently, in which Y is O, S, NH, or C(R7)═C(R8). Each of R7-R11 is, independently, H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C26 alkenyl, substituted or unsubstituted C2-6 alkynyl, substituted or unsubstituted C6-20 aryl, or substituted or unsubstituted C4-20 heteroaryl. Alternatively, each of R7-R11 is OH, C1-6 alkoxy, or N(R12)(R13), in which each of R12 and R13 is, independently, H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C2-6 alkenyl, substituted or unsubstituted C2-6 alkynyl, or substituted or unsubstituted C6-20 aryl. Each of R7-R11 can also be NO2, CN, or CO2R14, in which R14 is H or C1-6 alkyl.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: July 29, 2003
    Assignee: Academia Sinica
    Inventors: Jiann T'Suen Lin, Iuan-Yuan Wu, Yu-Tai Tao, E. Balasubramaniam
  • Publication number: 20030111956
    Abstract: A method of preparing a compound of formula I is described.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 19, 2003
    Applicant: Academia Sinica, a Taiwan research institution
    Inventors: Jiann T?apos;Suen Lin, Iuan-Yuan Wu, Yu-Tai Tao, E. Balasubramaniam
  • Patent number: 6512122
    Abstract: A method of preparing a compound of formula I is described. In this compound, each of R1-R6 is, independently, in which Y is O, S, NH, or C(R7)═C(R8). Each of R7-R11 is, independently, H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C2-6 alkenyl, substituted or unsubstituted C2-6 alkynyl, substituted or unsubstituted C6-20 aryl, or substituted or unsubstituted C4-20 heteroaryl. Alternatively, each of R7-R11 is OH, C1-6 alkoxy, or N(R12)(R13), in which each of R12 and R13 is, independently, H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C2-6 alkenyl, substituted or unsubstituted C2-6 alkynyl, or substituted or unsubstituted C6-20 aryl. Each of R7-R11 can also be NO2, CN, or CO2R14, in which R14 is H or C1-6 alkyl.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: January 28, 2003
    Assignee: Academia Sinica
    Inventors: Jiann T'suen Lin, Iuan-Yuan Wu, Yu-Tai Tao, E. Balasubramaniam
  • Publication number: 20020115870
    Abstract: A method of preparing a compound of formula I is described.
    Type: Application
    Filed: November 21, 2001
    Publication date: August 22, 2002
    Inventors: Jiann T?apos;suen Lin, Iuan-Yuan Wu, Yu-Tai Tao, E. Balasubramaniam