Patents by Inventor Ta-Chau Chang

Ta-Chau Chang 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: 8431708
    Abstract: A compound of formula (I): in which R1-R8, A, B, X, Y, m, and n are as defined herein. Also disclosed is a method for detecting a cancer cell using a compound of formula I.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: April 30, 2013
    Assignee: Academia Sinica
    Inventors: Ta-Chau Chang, Chih-Chien Cho, Cheng-Chung Chang, Chi-Chih Kang, Zi-Fu Wang
  • Publication number: 20130005720
    Abstract: This invention relates to a pharmaceutical composition for treating cancer, comprising an effective amount of a compound represented by formula (I): wherein R is —CCOCCOCC— or —CCOCCOCCOCC—; and a pharmaceutical acceptable carrier. This invention also relates to a method for treating cancer, comprising administering a therapeutically effective amount of said compound to a subject; and a method for stabilizing G4 structure of telomere by using this compound.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: Academia Sinica
    Inventors: Ta-Chau CHANG, Zi-Fu Wang, Chih-Chien Cho, Wei-Chun Huang, Jen-Fei Chu
  • Publication number: 20110111429
    Abstract: A compound of formula (I): in which R1-R8, A, B, X, Y, m, and n are as defined herein. Also disclosed is a method for detecting a cancer cell using a compound of formula I.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 12, 2011
    Applicant: Academia Sinica
    Inventors: Ta-Chau Chang, Chih-Chien Cho, Cheng-Chung Chang, Chi-Chih Kang, Zi-Fu Wang
  • Patent number: 7691624
    Abstract: This invention relates to a device for detecting cancer cells. The device includes a light source for generating light (e.g., a light emitting diode), a first optical filter selected from the group consisting of a band pass filter and a long pass filter, a second optical filter (i.e., a band pass filter) disposed between the light source and the first optical filter, and a sample receiver for receiving a sample. The sample receiver is disposed between the first and second optical filters. The first optical filter, the sample receiver, and the second optical filter are aligned so that light emitted from the light source passes sequentially through the second optical filter, the sample receiver, and the first optical filter.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: April 6, 2010
    Assignee: Academia Sinica
    Inventors: Ta-Chau Chang, Cheng-Chung Chang, Chi-Chih Kang, Ji-Yen Cheng
  • Publication number: 20070098233
    Abstract: This invention relates to a device for detecting cancer cells. The device includes a light source for generating light (e.g., a light emitting diode), a first optical filter selected from the group consisting of a band pass filter and a long pass filter, a second optical filter (i.e., a band pass filter) disposed between the light source and the first optical filter, and a sample receiver for receiving a sample. The sample receiver is disposed between the first and second optical filters. The first optical filter, the sample receiver, and the second optical filter are aligned so that light emitted from the light source passes sequentially through the second optical filter, the sample receiver, and the first optical filter.
    Type: Application
    Filed: October 18, 2006
    Publication date: May 3, 2007
    Inventors: Ta-Chau Chang, Cheng-Chung Chang, Chi-Chih Kang, Ji-Yen Cheng
  • Patent number: 6979738
    Abstract: This invention relates to carbazole compounds of the following formula: In the above formula, each of rings A and B, independently, is heteroaryl containing at least one nitrogen atom; each of X and Y, independently, is CH or N; each of R1–R6, independently, is H, C1–C8 alkyl, C2–C8 alkenyl, C2–C8 alkynyl, C3–C8 cycloalkyl, C3–C8 heterocycloalkyl, aryl, heteroaryl, OH, C1–C6 alkoxy, aryloxy, heteroaryloxy, NH2, C1–C6 alkylamino, C1–C12 dialkylamino, arylamino, diarylamino, or halogen; R7 is H, C1–C8 alkyl, C2–C8 alkenyl, C2–C8 alkynyl, C3–C8 cycloalkyl, C3–C8 heterocycloalkyl, aryl, heteroaryl; and <each of m and n, independently, is 1, 2, or 3.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: December 27, 2005
    Assignee: Academia Sinica
    Inventors: Ta-Chau Chang, Cheng-Chung Chang, Jin-Yi Wu
  • Publication number: 20050249669
    Abstract: This invention relates to a method for detecting cancer cells in a subject. The method includes contacting a plurality of cells in a sample obtained from the subject with carbazole compounds of the following formula: and calculating the percentage of the cells that emit florescence upon irradiation with an excitation light, in which, if the percentage is above a pre-set value, the subject is determined to contain cancer cells. In the above formula, each of rings A and B, independently, is heteroaryl containing at least one nitrogen atom; each of X and Y, independently, is CH or N; each of R1—R6, independently, is H, C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, C3-C8 cycloalkyl, C3-C8 heterocycloalkyl, aryl, heteroaryl, OH, C1-C6 alkoxy, aryloxy, heteroaryloxy, NH2, C1l-C6 alkylamino, C1-C12 dialkylamino, arylamino, diarylamino, or halogen; R7 is H, C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, C3-C8 cycloalkyl, C3-C8 heterocycloalkyl, aryl, heteroaryl; and each of m and n, independently, is 1, 2, or 3.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 10, 2005
    Inventors: Ta-Chau Chang, Cheng-Chung Chang
  • Publication number: 20050090671
    Abstract: This invention relates to carbazole compounds of the following formula: In the above formula, each of rings A and B, independently, is heteroaryl containing at least one nitrogen atom; each of X and Y, independently, is CH or N; each of R1-R6, independently, is H, C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, C3-C8 cycloalkyl, C3-C8 heterocycloalkyl, aryl, heteroaryl, OH, C1-C6 alkoxy, aryloxy, heteroaryloxy, NH2, C1-C6 alkylamino, C1-C12 dialkylamino, arylamino, diarylamino, or halogen; R7 is H, C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, C3-C8 cycloalkyl, C3-C8 heterocycloalkyl, aryl, heteroaryl; and each of m and n, independently, is 1, 2, or 3.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 28, 2005
    Inventors: Ta-Chau Chang, Cheng-Chung Chang, Jin-Yi Wu