Patents by Inventor Christina Li

Christina Li 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: 11965208
    Abstract: Disclosed herein include systems, methods, compositions, and kits for associating single cell sequencing data with phenotypic data and/or agent exposure. In some embodiments, cell indexing oligonucleotides comprising cell indexing sequences are associated with cells. In some embodiments, synthetic particles are associated with stochastic labels comprising cell indexing sequences. Sequential hybridizing and imaging of probes annealing to a cell indexing sequence can generate a spatial index. The spatial index can be employed to identify of the partition from which a sequenced nucleic acid target molecule originated.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: April 23, 2024
    Assignee: Becton, Dickinson And Company
    Inventors: Christina Chang, Sixing Li
  • Publication number: 20240079607
    Abstract: A fuel cell includes a gas diffusion layer (GM) situated between a catalyst layer of the fuel cell and a flow field plate of the fuel cell. The GM has a first region and a second region along a thickness direction of the fuel cell. The first region is adjacent to the catalyst layer and has a first thermal conductivity. The second region is adjacent to the flow field plate and has a second thermal conductivity lower than the first thermal conductivity.
    Type: Application
    Filed: January 22, 2021
    Publication date: March 7, 2024
    Inventors: Lei Cheng, Xiaobai Li, Christina Johnston, Bicheng Chen, Rikiya Yoshida, Shinichi Makino, Xu Zhang, John F. Christensen
  • Patent number: 10865384
    Abstract: This invention relates to a method for inducing or enhancing the differentiation of pluripotent stem cells into cardiomyocyte via casein kinase 1 inhibition said method comprising culturing the stem cells in the presence of a medium comprising a casein kinase 1 inhibitor of the formula (I) or (II) or a stereoisomer, tautomer, or a salt thereof wherein R1, R2 and R3 independently from another represent hydrogen, optionally substituted alkyl, alkenyl, alkynyl, heterocyclyl, heteroaryl or aryl; X represents NR4, O or S; and R4 represents hydrogen, optionally substituted alkyl, alkenyl, alkynyl, heterocyclyl, heteroaryl or aryl. The method can be used in the late phase of stem cell differentiation and in the compounds of formula (I) or (II) in combination with other small molecules can lead to especially high differentiation of stem cells into cardiomyocytes. The invention further relates to novel compounds which can be used in the method of the invention and kits for stem cell differentiation.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: December 15, 2020
    Assignees: Agency for Science, Technology and Research, National University of Singapore
    Inventors: Filip Laco, Joo Leng Low, Steve Oh, Christina Li Lin Chai, Qixing Zhong
  • Publication number: 20200061579
    Abstract: Disclosed herein is a method of manufacturing molecularly imprinted polymers for scarce target molecules that are made using surrogate molecules. Also disclosed herein are the molecularly imprinted polymers and their use in detecting the selected target molecules, particularly through the binding of a fluorescent surrogate molecule to the molecularly imprinted polymers that is then displaced from the molecularly imprinted polymer upon contact with the target molecule.
    Type: Application
    Filed: May 16, 2018
    Publication date: February 27, 2020
    Inventors: Christina Li Lin CHAI, Yen Wah TONG, Chee Yew LEONG, Cheng LI, Mun Hong NGAI
  • Publication number: 20190359941
    Abstract: The present invention relates to substituted azole derivatives in combination with cytokines in the ex vivo expansion of CD34+ hematopoietic stem and progenitor cells (HSPC) in a biological sample, more particularly the expansion of these cells obtained from non-enriched, i.e., the mononuclear fraction of the biological sample. The present invention further describes the transplantation regimen of the expanded hematopoietic graft developed through xenotransplantation studies. In a preferred embodiment, the combination comprising the azole based compounds and cytokines selected from SCF, TPO, FLT-3L and IGFBP-2 and results in the expansion of expansion of CD45+CD34+CD38?CD45RA?CD90+ hematopoietic stem cells and/or CD45+CD34+CD38?CD45RA?CD90+CD49f+ hematopoietic stem cells and/or CD45+CD34+CD38?CD45RA? hematopoietic progenitor cells from the mononucleated cells isolated from umbilical cord blood.
    Type: Application
    Filed: August 18, 2017
    Publication date: November 28, 2019
    Applicants: National University of Singapore, Singapore Health Services Pte Ltd
    Inventors: Sudipto BARI, Christina Li Lin CHAI, Gigi Ngar Chee CHIU, William Ying Khee HWANG, Joo Leng LOW, Qixing ZHONG
  • Patent number: 9938415
    Abstract: The present invention relates to derivatives of ?, ?-disubstituted amide compounds which comprise a substituted aryl at the ? carbon such that the substituent provides a means for attachment or incorporation of the compound to or in a polymer. The provision of such a substituent on the aryl has surprisingly been found not only to permit attachment to or incorporation n a polymer but also retention of useful antifouling activity. In embodiments, the substituent is selected from hydroxyl, ethers, esters, carboxyls, alkylsilyls and alkenyls. Experiments demonstrate that antifouling activity can be as good or better as the corresponding unsubstituted compound and that polymers functionalized so as to include or be formed from the substituted compound can be used to reduce settlement.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: April 10, 2018
    Assignees: Agency for Science, Technology and Research, National University of Singapore, Maritime and Port Authority of Singapore
    Inventors: Christina Li Lin Chai, Brendan Adrian Burkett, Serena Lay Ming Teo, Daniel Rittschof, Serina Siew Chen Lee, Gary Howard Dickinson, Han Hong
  • Publication number: 20170166867
    Abstract: This invention relates to a method for inducing or enhancing the differentiation of pluripotent stem cells into cardiomyocyte via casein kinase 1 inhibition said method comprising culturing the stem cells in the presence of a medium comprising a casein kinase 1 inhibitor of the formula (I) or (II) or a stereoisomer, tautomer, or a salt thereof wherein R1, R2 and R3 independently from another represent hydrogen, optionally substituted alkyl, alkenyl, alkynyl, heterocyclyl, heteroaryl or aryl; X represents NR4, O or S; and R4 represents hydrogen, optionally substituted alkyl, alkenyl, alkynyl, heterocyclyl, heteroaryl or aryl. The method can be used in the late phase of stem cell differentiation and in the compounds of formula (I) or (II) in combination with other small molecules can lead to especially high differentiation of stem cells into cardiomyocytes. The invention further relates to novel compounds which can be used in the method of the invention and kits for stem cell differentiation.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 15, 2017
    Inventors: Filip LACO, Joo Leng LOW, Steve OH, Christina Li Lin CHAI, Qixing ZHONG
  • Patent number: 9441134
    Abstract: Disclosed is a process for preparing fluorinated core-shell polymer particles in which the core is a non-fluorinated polymer and the shell is derived from at least 50% by weight of fluorinated monomers, by 1) synthesizing a core polymer latex by aqueous emulsion polymerization of non-fluorinated monomers forming the core polymer, 2) adding the shell-forming fluorinated monomers or mixtures of at least 50% by weight of fluorinated monomers with non-fluorinated monomers to the core polymer latex of step 1) and allowing for at least one hour of equilibration time in which essentially no polymerization of the shell monomers occurs, 3) reacting the shell-forming monomers in the mixture from step 2) to form the core-shell polymer particles, wherein the process steps 1) to 3) are carried out under mechanical stirring in the absence of surfactants, emulsifiers, emulsifying monomers and mixtures thereof.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: September 13, 2016
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Parappuveetil Sarangadharan Suresh, Yoong Kim, Andreas Fechtenkotter, Han Hong, Christina Li Lin Chai, Xiaogang Yang, Yeap Hung Ng
  • Patent number: 9255335
    Abstract: A method for electrochemically reducing CO2 is provided. A cathode is provided, wherein the cathode comprises a conductive substrate with a catalyst of a metal and a metal oxide based coating on a side of the cathode. An anode is spaced apart from the cathode. An ionic transport is provided between the anode and cathode. The cathode is exposed to CO2 and H2O. The anode is exposed to H2O. A voltage is provided between the cathode and anode.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: February 9, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Matthew W. Kanan, Yihong Chen, Christina Li
  • Publication number: 20160009926
    Abstract: The present invention relates to derivatives of ?, ?-disubstituted amide compounds which comprise a substituted aryl at the a carbon such that the substituent provides a means for attachment or incorporation of the compound to or in a polymer. The provision of such a substituent on the aryl has surprisingly been found not only to permit attachment to or incorporation n a polymer but also retention of useful antifouling activity. In embodiments, the substituent is selected from hydroxyl, ethers, esters, carboxyls, alkylsilyls and alkenyls. Experiments demonstrate that antifouling activity can be as good or better as the corresponding unsubstituted compound and that polymers functionalised so as to include or be formed from the substituted compound can be used to reduce settlement.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Christina Li Lin Chai, Brendan Adrian Burkett, Serena Lay Ming Teo, Daniel Rittschof, Serina Siew Chen Lee, Gary Howard Dickinson, Han Hong
  • Patent number: 9169223
    Abstract: The present invention relates to derivatives of ?,?-disubstituted amide compounds which comprise a substituted aryl at the ? carbon such that the substituent provides a means for attachment or incorporation of the compound to or in a polymer. The provision of such a substituent on the aryl has surprisingly been found not only to permit attachment to or incorporation in a polymer but also retention of useful antifouling activity. In embodiments, the substituent is selected from hydroxyl, ethers, esters, carboxyls, alkylsilyls and alkenyls. Experiments demonstrate that antifouling activity can be as good or better as the corresponding unsubstituted compound and that polymers functionalized so as to include or be formed from the substituted compound can be used to reduce settlement.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: October 27, 2015
    Assignees: Agency for Science, Technology and Research, National University of Singapore
    Inventors: Christina Li Lin Chai, Brendan Adrian Burkett, Serena Lay Ming Teo, Daniel Rittschof, Serina Siew Chen Lee, Gary Howard Dickinson, Han Hong
  • Publication number: 20150136613
    Abstract: A method for electrochemically reducing CO is provided. A cathode is provided, wherein the cathode comprises a conductive substrate with a catalyst of a metal and a metal oxide based coating on a side of the cathode. An anode is spaced apart from the cathode. An ionic transport is provided between the anode and cathode. The cathode is exposed to CO and H2O. The anode is exposed to H2O. A voltage is provided between the cathode and anode.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 21, 2015
    Inventors: Christina LI, Matthew W. KANAN
  • Publication number: 20140291163
    Abstract: A method for electrochemically reducing CO2 is provided. A cathode is provided, wherein the cathode comprises a conductive substrate with a catalyst of a metal and a metal oxide based coating on a side of the cathode. An anode is spaced apart from the cathode. An ionic transport is provided between the anode and cathode. The cathode is exposed to CO2 and H2O. The anode is exposed to H2O. A voltage is provided between the cathode and anode.
    Type: Application
    Filed: July 25, 2012
    Publication date: October 2, 2014
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Matthew W. Kanan, Yihong Chen, Christina Li
  • Publication number: 20130171346
    Abstract: Disclosed is a process for preparing fluorinated core-shell polymer particles in which the core is a non-fluorinated polymer and the shell is derived from at least 50% by weight of fluorinated monomers, by 1) synthesizing a core polymer latex by aqueous emulsion polymerization of non-fluorinated monomers forming the core polymer, 2) adding the shell-forming fluorinated monomers or mixtures of at least 50% by weight of fluorinated monomers with non-fluorinated monomers to the core polymer latex of step 1) and allowing for at least one hour of equilibration time in which essentially no polymerization of the shell monomers occurs, 3) reacting the shell-forming monomers in the mixture from step 2) to form the core-shell polymer particles, wherein the process steps 1) to 3) are carried out under mechanical stirring in the absence of surfactants, emulsifiers, emulsifying monomers and mixtures thereof.
    Type: Application
    Filed: June 2, 2010
    Publication date: July 4, 2013
    Applicants: BASF SE, A*STAR
    Inventors: Parappuveetil Sarangadharan Suresh, Yoong Kim, Andreas Fechtenkotter, Han Hong, Christina Li Lin Chai, Xiaogang Yang, Yeap Hung Ng
  • Patent number: 8455935
    Abstract: A ferroelectric film comprising polyaminodifluoroborane (PADFB). Also a memory device utilizing the ferroelectric film, a method of fabricating a ferroelectric polymer and a ferroelectric solution.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: June 4, 2013
    Assignees: Sony Corporation, Agency for Science, Technology, and Research
    Inventors: Takehisa Ishida, Sunil Madhukar Bhangale, Han Hong, Christina Li Lin Chai
  • Publication number: 20120301423
    Abstract: The present invention relates to derivatives of ?,?-disubstituted amide compounds which comprise a substituted aryl at the ? carbon such that the substituent provides a means for attachment or incorporation of the compound to or in a polymer. The provision of such a substituent on the aryl has surprisingly been found not only to permit attachment to or incorporation in a polymer but also retention of useful antifouling activity. In embodiments, the substituent is selected from hydroxyl, ethers, es ters, carboxyls, alkylsilyls and alkenyls. Experiments demonstrate that antifouling activity can be as good or better as the corresponding unsubstituted compound and that polymers functionalised so as to include or be formed from the substituted compound can be used to reduce settlement.
    Type: Application
    Filed: February 2, 2011
    Publication date: November 29, 2012
    Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, MARITIME AND PORT AUTHORITY OF SINGAPORE, NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Christina Li Lin Chai, Brendan Adrian Burkett, Serena Lay Ming Teo, Daniel Rittschof, Serina Siew Chen Lee, Gary Howard Dickinson, Han Hong
  • Publication number: 20090294818
    Abstract: A ferroelectric film comprising polyaminodifluoroborane (PADFB). Also a memory device utilizing the ferroelectric film, a method of fabricating a ferroelectric polymer and a ferroelectric solution.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 3, 2009
    Applicants: SONY CORPORATION, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Takehisa Ishida, Sunil Madhukar Bhangale, Han Hong, Christina Li Lin Chai