Patents by Inventor Fuqiang Chen

Fuqiang Chen 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: 20170073705
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: November 3, 2016
    Publication date: March 16, 2017
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Patent number: 9512444
    Abstract: The present invention provides methods and kits for editing specific chromosomal sequences in cells. In particular, targeting endonucleases and single-stranded nucleic acids are used to edit the chromosomal sequence.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: December 6, 2016
    Assignee: Sigma-Aldrich Co. LLC
    Inventors: Fuqiang Chen, Shondra M. Pruett-Miller, Gregory D. Davis
  • Publication number: 20160298134
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Publication number: 20160298136
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Publication number: 20160298133
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Publication number: 20160298125
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Publication number: 20160298132
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Publication number: 20160298137
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Publication number: 20160298138
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Publication number: 20160298135
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Publication number: 20160017366
    Abstract: The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR/Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.
    Type: Application
    Filed: December 5, 2013
    Publication date: January 21, 2016
    Applicant: SIGMA-ALDRICH CO. LLC
    Inventors: Fuqiang CHEN, Gregory D. DAVIS, Qiaohua KANG, Scott W. KNIGHT
  • Patent number: 9062303
    Abstract: The present invention provides methods for the rapid and efficient isolation of small RNA from a biological sample. In particular, small RNA is separated and isolated from large RNA, DNA, proteins, and other macromolecules in the biological sample.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: June 23, 2015
    Assignee: SIGMA-ALDRICH CO. LLC
    Inventors: Fuqiang Chen, Carol Kreader
  • Publication number: 20140273230
    Abstract: The present invention provides methods for modifying chromosomal sequences. In particular, methods are provided for using RNA-guided endonucleases or modified RNA-guided endonucleases to modify targeted chromosomal sequences.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: SIGMA-ALDRICH CO., LLC
    Inventors: Fuqiang Chen, Gregory Davis
  • Publication number: 20140273233
    Abstract: The present invention provides methods for modifying chromosomal sequences. In particular, methods are provided for using RNA-guided endonucleases or modified RNA-guided endonucleases to modify targeted chromosomal sequences.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: SIGMA-ALDRICH CO., LLC
    Inventors: Fuqiang Chen, Gregory Davis
  • Publication number: 20140242702
    Abstract: Methods and compositions for increasing nuclease-mediated genomic modification using DNA repair inhibitors are provided.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Inventors: Fuqiang Chen, Qiaohua Kang, Thomas Wechsler
  • Publication number: 20130137180
    Abstract: The present invention provides methods and kits for editing specific chromosomal sequences in cells. In particular, targeting endonucleases and single-stranded nucleic acids are used to edit the chromosomal sequence.
    Type: Application
    Filed: July 22, 2011
    Publication date: May 30, 2013
    Applicant: SIGMA ALDRICH CO, LLC
    Inventors: Fuqiang Chen, Shondra M. Pruett-Miller, Gregory D. Davis
  • Publication number: 20100256351
    Abstract: The present invention provides methods for the rapid and efficient isolation of small RNA from a biological sample. In particular, small RNA is separated and isolated from large RNA, DNA, proteins, and other macromolecules in the biological sample.
    Type: Application
    Filed: June 22, 2010
    Publication date: October 7, 2010
    Applicant: SIGMA ALDRICH CO.
    Inventors: Fuqiang Chen, Carol Kreader
  • Publication number: 20100175861
    Abstract: A tube assembly for a beat exchanger is provided having a first U-shaped stainless steel assembly component and a second U-shaped stainless steel assembly component. In addition, the tube assembly has at least one laser-welded joint coupling the first and second U-shaped assembly components together. The laser-welded joint has a weld that extends along substantially an entire length of the tube assembly.
    Type: Application
    Filed: March 25, 2010
    Publication date: July 15, 2010
    Applicant: Caterpillar Inc.
    Inventors: Jiubo Ma, Zhishang Yang, Shizhu Zhao, Shoudu Zhang, Yuexuan Sheng, Lianmin Yang, Zengqiang Wang, Fuqiang Chen, Xinqiang Xu
  • Publication number: 20090240044
    Abstract: The present invention provides methods for the reduction of endotoxins in a plasmid preparation using a carbohydrate non-ionic detergent with silica chromatography.
    Type: Application
    Filed: April 1, 2009
    Publication date: September 24, 2009
    Applicant: Sigma-Aldrich Company
    Inventors: Kevin Bernard Ray, Carol Ann Kreader, Fuqiang Chen, David Eric Cutter
  • Patent number: 7531308
    Abstract: The present invention provides methods for the reduction of endotoxins in a plasmid preparation using a carbohydrate non-ionic detergent with silica chromatography.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: May 12, 2009
    Assignee: Sigma-Aldrich Co.
    Inventors: Kevin Bernard Ray, Carol Ann Kreader, Fuqiang Chen, David Eric Cutter