Patents by Inventor Stephen Siu Chung Chim

Stephen Siu Chung Chim 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: 11597977
    Abstract: The present invention relates to new methods for diagnosing a pregnancy-associated disorder by analyzing fetal DNA present in the mother's blood. More specifically, this invention relies on the discovery that the maspin gene is differentially methylated in fetal DNA and in maternal DNA and provides these new diagnostic methods, which distinguish fetal DNA from maternal DNA and detect prenatal disorders based on abnormalities in fetal DNA level and methylation status.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 7, 2023
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk Ming Dennis Lo, Wai Kwun Rossa Chiu, Stephen Siu Chung Chim, Yu-Kwan Tong, Chunming Ding
  • Patent number: 10947593
    Abstract: The present invention provides a method for determining increased risk of premature birth in a pregnant woman by detecting altered expression level of one or more marker genes in the woman's blood. A kit and device useful for such a method are also provided. In addition, the present invention provides a method for preventing or reducing the likelihood of premature birth.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: March 16, 2021
    Assignee: The Chinese University of Hong Kong
    Inventors: Stephen Siu-Chung Chim, Chee Yin Cheung, Wan Chee Cheung, Tak Yeung Leung, Wing Shan Lee
  • Publication number: 20200270694
    Abstract: The present invention relates to new methods for diagnosing a pregnancy-associated disorder by analyzing fetal DNA present in the mother's blood. More specifically, this invention relies on the discovery that the maspin gene is differentially methylated in fetal DNA and in maternal DNA and provides these new diagnostic methods, which distinguish fetal DNA from maternal DNA and detect prenatal disorders based on abnormalities in fetal DNA level and methylation status.
    Type: Application
    Filed: March 2, 2020
    Publication date: August 27, 2020
    Inventors: YUK MING DENNIS LO, Wai Kwun Rossa Chiu, Stephen Siu Chung Chim, Yu-Kwan Tong, Chunming Ding
  • Patent number: 10731217
    Abstract: Methods and kits are provided for diagnosing, monitoring, or predicting preeclaimpsia in a pregnant woman, trisomy 18 and trisomy 21 in a fetus, as well as for detecting pregnancy in a woman, by quantitatively measuring in the maternal blood the amount of one or more RNA species derived from a set of genetic loci and comparing the amount of the RNA species with a standard control.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: August 4, 2020
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk-Ming Dennis Lo, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Nancy Bo Yin Tsui
  • Patent number: 10683557
    Abstract: It provides a method for predicting the risk of an adverse pregnancy or neonatal outcome for a pregnant subject by detecting the elevated level of bacteria from one or more selected bacterial taxa (e.g., genera or species). A kit useful for such a method is also provided. In addition, it provides a method for determining the risk of having advanced cervical dilation and/or premature cervical shortening based on differentially abundant bacterial taxa.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: June 16, 2020
    Assignee: The Chinese University of Hong Kong
    Inventors: Stephen Siu-Chung Chim, Chee-Yin Cheung, Wan-Chee Cheung, Meng Meng, Tak-Yeung Leung, Keun-Young Lee
  • Patent number: 10604808
    Abstract: The present invention relates to new methods for diagnosing a pregnancy-associated disorder by analyzing fetal DNA present in the mother's blood. More specifically, this invention relies on the discovery that the maspin gene is differentially methylated in fetal DNA and in maternal DNA and provides these new diagnostic methods, which distinguish fetal DNA from maternal DNA and detect prenatal disorders based on abnormalities in fetal DNA level and methylation status.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: March 31, 2020
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk Ming Dennis Lo, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Yu-Kwan Tong, Chunming Ding
  • Publication number: 20190376140
    Abstract: The present invention provides a method for determining increased risk of premature birth in a pregnant woman by detecting altered expression level of one or more marker genes in the woman's blood. A kit and device useful for such a method are also provided. In addition, the present invention provides a method for preventing or reducing the likelihood of premature birth.
    Type: Application
    Filed: August 21, 2019
    Publication date: December 12, 2019
    Inventors: Stephen Siu-Chung CHIM, Chee Yin Cheung, Cheung Cheung, Tak Yeung Leung, Wing Shan Lee
  • Patent number: 10428383
    Abstract: The present invention provides a method for determining increased risk of premature birth in a pregnant woman by detecting altered expression level of one or more marker genes in the woman's blood. A kit and device useful for such a method are also provided. In addition, the present invention provides a method for preventing or reducing the likelihood of premature birth.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: October 1, 2019
    Assignee: The Chinese University of Hong Kong
    Inventors: Stephen Siu-Chung Chim, Chee Yin Cheung, Wan Chee Cheung, Tak Yeung Eung, Wing Shan Lee
  • Publication number: 20180327846
    Abstract: Methods and kits are provided for diagnosing, monitoring, or predicting preeclaimpsia in a pregnant woman, trisomy 18 and trisomy 21 in a fetus, as well as for detecting pregnancy in a woman, by quantitatively measuring in the maternal blood the amount of one or more RNA species derived from a set of genetic loci and comparing the amount of the RNA species with a standard control.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 15, 2018
    Inventors: Yuk-Ming Dennis Lo, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Nancy Bo Yin Tsui
  • Patent number: 10006087
    Abstract: Methods and kits are provided for diagnosing, monitoring, or predicting preeclaimpsia in a pregnant woman, trisomy 18 and trisomy 21 in a fetus, as well as for detecting pregnancy in a woman, by quantitatively measuring in the maternal blood the amount of one or more RNA species derived from a set of genetic loci and comparing the amount of the RNA species with a standard control.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: June 26, 2018
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk-Ming Dennis Lo, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Nancy Bo Yin Tsui
  • Publication number: 20180155791
    Abstract: The present invention relates to new methods for diagnosing a pregnancy-associated disorder by analyzing fetal DNA present in the mother's blood. More specifically, this invention relies on the discovery that the maspin gene is differentially methylated in fetal DNA and in maternal DNA and provides these new diagnostic methods, which distinguish fetal DNA from maternal DNA and detect prenatal disorders based on abnormalities in fetal DNA level and methylation status.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 7, 2018
    Inventors: Yuk Ming Dennis LO, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Yu-Kwan Tong, Chunming Ding
  • Patent number: 9862999
    Abstract: The present invention relates to new methods for diagnosing a pregnancy-associated disorder by analyzing fetal DNA present in the mother's blood. More specifically, this invention relies on the discovery that the maspin gene is differentially methylated in fetal DNA and in maternal DNA and provides these new diagnostic methods, which distinguish fetal DNA from maternal DNA and detect prenatal disorders based on abnormalities in fetal DNA level and methylation status.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 9, 2018
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk Ming Dennis Lo, Wai Kwun Rossa Chiu, Stephen Siu-Chung Chim, Yu-Kwan Tong, Chunming Ding
  • Publication number: 20170114396
    Abstract: It provides a method for predicting the risk of an adverse pregnancy or neonatal outcome for a pregnant subject by detecting the elevated level of bacteria from one or more selected bacterial taxa (e.g., genera or species). A kit useful for such a method is also provided. In addition, it provides a method for determining the risk of having advanced cervical dilation and/or premature cervical shortening based on differentially abundant bacterial taxa.
    Type: Application
    Filed: June 23, 2015
    Publication date: April 27, 2017
    Applicant: THE CHINESE UNIVERSITY OF HONG KONG
    Inventors: Stephen Siu-Chung CHIM, Chee-Yin CHEUNG, Wan-Chee CHEUNG, Meng MENG, Tak-Yeung LEUNG, Keun-Young LEE
  • Publication number: 20160258018
    Abstract: The present invention relates to new methods for diagnosing a pregnancy-associated disorder by analyzing fetal DNA present in the mother's blood. More specifically, this invention relies on the discovery that the maspin gene is differentially methylated in fetal DNA and in maternal DNA and provides these new diagnostic methods, which distinguish fetal DNA from maternal DNA and detect prenatal disorders based on abnormalities in fetal DNA level and methylation status.
    Type: Application
    Filed: February 1, 2016
    Publication date: September 8, 2016
    Inventors: Yuk Ming Dennis Lo, Wai Kwun Rossa Chiu, Stephen Siu-Chung Chim, Yu-Kwan Tong, Chunming Ding
  • Publication number: 20150284800
    Abstract: Methods and kits are provided for diagnosing, monitoring, or predicting preeclaimpsia in a pregnant woman, trisomy 18 and trisomy 21 in a fetus, as well as for detecting pregnancy in a woman, by quantitatively measuring in the maternal blood the amount of one or more RNA species derived from a set of genetic loci and comparing the amount of the RNA species with a standard control.
    Type: Application
    Filed: April 13, 2015
    Publication date: October 8, 2015
    Inventors: YUK-MING DENNIS LO, ROSSA WAI KWUN CHIU, STEPHEN SIU CHUNG CHIM, NANCY BO YIN TSUI
  • Patent number: 8927216
    Abstract: This application describes the discovery that, in a pregnant woman, certain genes (such as RASSF1A, APC, CASP8, RARB, SCGB3A1, DAB2IP, PTPN6, THY1, TMEFF2, and PYCARD) originated from a fetus are highly methylated, whereas the same genes of maternal origin are unmethylated. This discovery allows the easy detection of one or more of these methylated fetal genes in a biological sample from a pregnant woman, serving as a universal indicator of the presence of fetal DNA in the sample. These fetal methylation markers are particularly useful as positive controls for a non-invasive analytical process during which the quality and quantity of fetal DNA are monitored. These newly identified fetal markers can also be measured directly for diagnosis of certain pregnancy-related conditions.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 6, 2015
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk-Ming Dennis Lo, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Chunming Ding, Kwan Chee Chan, Hing Nam Ivy Wong, Ka Chun Ryan Yuen
  • Publication number: 20130084566
    Abstract: This application describes the discovery that, in a pregnant woman, certain genes (such as RASSF1A, APC, CASP8, RARB, SCGB3A1, DAB2IP, PTPN6, THY1, TMEFF2, and PYCARD) originated from a fetus are highly methylated, whereas the same genes of maternal origin are unmethylated. This discovery allows the easy detection of one or more of these methylated fetal genes in a biological sample from a pregnant woman, serving as a universal indicator of the presence of fetal DNA in the sample. These fetal methylation markers are particularly useful as positive controls for a non-invasive analytical process during which the quality and quantity of fetal DNA are monitored. These newly identified fetal markers can also be measured directly for diagnosis of certain pregnancy-related conditions.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 4, 2013
    Applicant: The Chinese University of Hong Kong
    Inventors: YUK MING DENNIS LO, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Chunming Ding, Kwan Chee Chan, Hing Nam Ivy Wong, Ka Chun Ryan Yuen
  • Patent number: 8288100
    Abstract: This application describes the discovery that, in a pregnant woman, certain genes (such as RASSF1A, APC, CASP8, RARB, SCGB3A1, DAB2IP, PTPN6, THY1, TMEFF2, and PYCARD) originated from a fetus are highly methylated, whereas the same genes of maternal origin are unmethylated. This discovery allows the easy detection of one or more of these methylated fetal genes in a biological sample from a pregnant woman, serving as a universal indicator of the presence of fetal DNA in the sample. These fetal methylation markers are particularly useful as positive controls for a non-invasive analytical process during which the quality and quantity of fetal DNA are monitored. These newly identified fetal markers can also be measured directly for diagnosis of certain pregnancy-related conditions.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: October 16, 2012
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk Ming Dennis Lo, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Chunming Ding, Kwan Chee Chan, Hing Nam Ivy Wong, Ka Chun Ryan Yuen
  • Publication number: 20120003650
    Abstract: The present invention relates to new methods for diagnosing a pregnancy-associated disorder by analyzing fetal DNA present in the mother's blood. More specifically, this invention relies on the discovery that the maspin gene is differentially methylated in fetal DNA and in maternal DNA and provides these new diagnostic methods, which distinguish fetal DNA from maternal DNA and detect prenatal disorders based on abnormalities in fetal DNA level and methylation status.
    Type: Application
    Filed: August 22, 2011
    Publication date: January 5, 2012
    Applicant: The Chinese University of Hong Kong
    Inventors: Yuk Ming Dennis LO, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Yu-Kwan Tong, Chunming Ding
  • Patent number: 8026067
    Abstract: The present invention relates to new methods for diagnosing a pregnancy-associated disorder by analyzing fetal DNA present in the mother's blood. More specifically, this invention relies on the discovery that the maspin gene is differentially methylated in fetal DNA and in maternal DNA and provides these new diagnostic methods, which distinguish fetal DNA from maternal DNA and detect prenatal disorders based on abnormalities in fetal DNA level and methylation status.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: September 27, 2011
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk Ming Dennis Lo, Rossa Wai Kwun Chiu, Stephen Siu Chung Chim, Yu-kwan Tong, Chunming Ding