Patents by Inventor Wei Leong Chew

Wei Leong Chew 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: 20230257736
    Abstract: Disclosed is a method for assessing the transduction efficiency and/or specificity of vectors at single cell level.
    Type: Application
    Filed: June 11, 2021
    Publication date: August 17, 2023
    Inventors: Wei Leong Chew, Choong Tat Keng, Ke Guo, Daryl Lim
  • Publication number: 20230211016
    Abstract: Methods of editing target nucleic acids are provided using a guide RNA and a Cas9 protein to excise exons in a target gene and where the edited gene is expressed to produce a truncated polypeptide.
    Type: Application
    Filed: December 23, 2022
    Publication date: July 6, 2023
    Inventors: Amy J. Wagers, Mohammadsharif Tabebordbar, Wei Leong Chew, George M. Church
  • Publication number: 20230174972
    Abstract: The present application discloses methods useful for the multiplex measurement of enzymatic activities. Also disclosed are polynucleotide constructs, constructs libraries and compartments related suitable for use in the methods.
    Type: Application
    Filed: October 15, 2020
    Publication date: June 8, 2023
    Inventors: Ting Xun Nicholas Ong, Wei Leong Chew
  • Patent number: 11666665
    Abstract: Methods of editing target nucleic acids are provided using a guide RNA and a Cas9 protein to excise exons in a target gene and where the edited gene is expressed to produce a truncated polypeptide.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: June 6, 2023
    Assignee: President and Fellows of Harvard College
    Inventors: Amy J. Wagers, Mohammadsharif Tabebordbar, Wei Leong Chew, George M. Church
  • Publication number: 20230051661
    Abstract: The present invention refers to a fusion protein or a protein complex comprising a DNA binding protein (DnaBP), a nucleobase modifying protein (NMP), and a Base Excision Repair associated protein (BERAP. Also, described herein are a method of replacing a cytosine with a guanine on a DNA strand in a cell and a method of treating a subject having or suspected of having a disease or disorder.
    Type: Application
    Filed: December 28, 2020
    Publication date: February 16, 2023
    Inventors: Liwei Chen, Wei Leong Chew
  • Publication number: 20200289669
    Abstract: Methods of editing target nucleic acids are provided using a guide RNA and a Cas9 protein to excise exons in a target gene and where the edited gene is expressed to produce a truncated polypeptide.
    Type: Application
    Filed: March 30, 2020
    Publication date: September 17, 2020
    Inventors: Amy J. Wagers, Mohammadsharif Tabebordbar, Wei Leong Chew, George M. Church
  • Publication number: 20190345483
    Abstract: The invention provides methods of altering a target nucleic acid in a cell using the AAV split Cas9 platform. The methods comprise providing the cell an enzymatically active Cas9 and optionally a transcriptional regulator fused thereto and guide RNA having different spacer sequence lengths wherein the guide RNA directs the enzymatically active Cas9 and optionally a transcriptional regulator fused thereto to either cleave a target nucleic acid or regulate expression of a target nucleic acid.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 14, 2019
    Inventors: George M. Church, Wei Leong Chew
  • Publication number: 20180155708
    Abstract: Split Cas9 proteins, including an active nuclease, a nickase, and a nuclease-null Cas9 protein, are provided. The Cas9 proteins were derived from nucleic acids encoding the S. pyogenes Cas9 protein. The split Cas9 proteins are provided as a first portion comprising the N-terminal lobe and a second portion comprising the C-terminal lobe. Expression of the split Cas9 proteins utilizes a split intein expression and splicing system derived from Rhodothermus marinus Methods of utilizing the split Cas9 proteins and nucleic acids encoding them for genomic engineering are presented.
    Type: Application
    Filed: January 8, 2016
    Publication date: June 7, 2018
    Inventors: George M. Church, Wei Leong Chew
  • Publication number: 20170266320
    Abstract: Methods of editing target nucleic acids are provided using a guide RNA and a Cas9 protein to excise exons in a target gene and where the edited gene is expressed to produce a truncated polypeptide.
    Type: Application
    Filed: December 1, 2015
    Publication date: September 21, 2017
    Inventors: Amy J. Wagers, Mohammadsharif Tabebordbar, Wei Leong Chew, George M. Church