Patents by Inventor Wai Yi Tsui

Wai Yi Tsui 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).

  • Publication number: 20240136022
    Abstract: Provided herein are methods and kits for measuring fragment size distribution of DNA fragments from a sample of a subject, for the purposes of cancer or tumor detection, characterization, and/or management.
    Type: Application
    Filed: November 17, 2023
    Publication date: April 25, 2024
    Inventors: Kristina Kruglyak, Francesco Marass, Wai Yi Tsui
  • Publication number: 20230114365
    Abstract: The genomic data processing systems and methods described herein can accurately detect mutations in nucleic acid (e.g., cell free DNA (cfDNA) sequence reads associated with plasma nucleic acid samples. The genomic data processing system of the present disclosure distinguishes mutations derived from a tumor from mutations derived of clonal hematopoietic (CH) origin. The origin of mutated DNA fragments can be more accurately determined by analyzing fragment sizes in cfDNA to generate tumor and CH regions of interest (ROIs) in corresponding size profiles. A mutation can be more accurately classified using a metric based on proportions of fragments in the ROIs.
    Type: Application
    Filed: March 18, 2021
    Publication date: April 13, 2023
    Inventors: Wai Yi Tsui, Francesco Marass, Luis Diaz, JR.
  • Patent number: 8563242
    Abstract: The present invention relates to a new, non-invasive method for detecting chromosomal aneuploidy by analyzing a sample from a pregnant woman. The detection is based on the ratio between the amount of a fetal methylation marker located on a chromosome relevant to the aneuploidy and the amount of a fetal genetic marker located on a reference chromosome, offering improved accuracy.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: October 22, 2013
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk Ming Dennis Lo, Rossa Wai Kwun Chiu, Yu Kwan Tong, Shengnan Jin, Siu Chung Stephen Chim, Wai Yi Tsui
  • Publication number: 20110039724
    Abstract: The present invention relates to a new, non-invasive method for detecting chromosomal aneuploidy by analyzing a sample from a pregnant woman. The detection is based on the ratio between the amount of a fetal methylation marker located on a chromosome relevant to the aneuploidy and the amount of a fetal genetic marker located on a reference chromosome, offering improved accuracy.
    Type: Application
    Filed: July 9, 2010
    Publication date: February 17, 2011
    Applicant: The Chinese University of Hong Kong
    Inventors: Yuk Ming Dennis Lo, Rossa Wai Kwun Chiu, Yu Kwan Tong, Shengnan Jin, Siu Chung Stephen Chim, Wai Yi Tsui