Patents by Inventor Carol Kreader

Carol Kreader 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: 20220315972
    Abstract: Methods for primer switching during amplification reactions are provided. In particular, methods are provided for converting single primer PCR amplicons to dual primer PCR amplicons.
    Type: Application
    Filed: June 10, 2022
    Publication date: October 6, 2022
    Inventors: Brian W. Ward, Carol A. Kreader, Jaime K. Robert, Kenneth E. Heuermann
  • Patent number: 11390913
    Abstract: Methods for primer switching during amplification reactions are provided. In particular, methods are provided for converting single primer PCR amplicons to dual primer PCR amplicons.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: July 19, 2022
    Assignee: Sigma-Aldrich Co. LLC
    Inventors: Brian W. Ward, Carol A. Kreader, Jaime K. Robert, Kenneth E. Heuermann
  • Patent number: 11268144
    Abstract: The present disclosure provides reagents and methods for molecular proximity detection of specific endogenous nucleic acids in situ using RNA-guided nucleic acid binding proteins.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: March 8, 2022
    Assignee: Sigma-Aldrich Co. LLC
    Inventors: Gregory D. Davis, Vikas B. Palhan, Carol A. Kreader
  • Patent number: 10711266
    Abstract: The present disclosure provides methods and kits for isolating miRNAs from biological fluids.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: July 14, 2020
    Assignee: Sigma-Aldrich Co. LLC
    Inventor: Carol A. Kreader
  • Patent number: 10711296
    Abstract: Processes, oligonucleotides, and kits for amplifying RNA. In particular, the processes generate and amplify cDNA libraries in which the orientation of the input RNA molecule is preserved in the products. Among the various aspects of the present disclosure is the provision of process for directionally amplifying RNA. The process comprises reverse transcribing at least one RNA molecule in the presence of a plurality of first synthesis primers to generate a plurality of first strands of complementary DNA (cDNA), wherein each of the first synthesis primers comprises a 3? sequence having complementarity to a portion of the RNA molecule, a non-complementary 5? sequence corresponding to one or more amplification primers, and optionally an internal tag sequence comprising a first tag sequence.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: July 14, 2020
    Assignee: Sigma-Aldrich Co. LLC
    Inventors: Kenneth B Heuermann, Carol A Kreader, Jaime K Robert, Brian W Ward
  • Patent number: 10570378
    Abstract: The present disclosure provides compositions and methods for acetylating histones at targeted chromosomal locations in a cell. In particular, the disclosure provides a fusion protein comprising a DNA binding domain and at least one histone acetyltransferase (HAT) domain, such that the DNA binding domain targets the fusion protein to a targeted chromosomal location and the HAT domain acetylates histones at the targeted location.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: February 25, 2020
    Assignee: Sigma-Aldrich Co. LLC
    Inventors: Qingzhou Ji, Carol Kreader
  • Publication number: 20190211386
    Abstract: Methods for primer switching during amplification reactions are provided. In particular, methods are provided for converting single primer PCR amplicons to dual primer PCR amplicons.
    Type: Application
    Filed: September 22, 2017
    Publication date: July 11, 2019
    Inventors: Brian W. Ward, Carol A. Kreader, Jaime K. Robert, Kenneth E. Heuermann
  • Publication number: 20190177780
    Abstract: Methods for visualizing modified nucleotides in a specific nucleic acid sequence or specific nucleic acid sequence interactions in single cells, wherein the methods comprise coupling an in situ hybridization (ISH) reaction with a proximity ligation assay (PLA) reaction.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 13, 2019
    Applicant: SIGMA-ALDRICH CO. LLC
    Inventors: Vikas Palhan, Carol Kreader
  • Publication number: 20190144850
    Abstract: The present disclosure provides methods and kits for isolating miRNAs from biological fluids.
    Type: Application
    Filed: October 15, 2018
    Publication date: May 16, 2019
    Applicant: SIGMA-ALDRICH CO. LLC
    Inventor: Carol A. Kreader
  • Patent number: 10253356
    Abstract: Methods for visualizing modified nucleotides in a specific nucleic acid sequence or specific nucleic acid sequence interactions in single cells, wherein the methods comprise coupling an in situ hybridization (ISH) reaction with a proximity ligation assay (PLA) reaction.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: April 9, 2019
    Assignee: Sigma-Aldrich Co. LLC
    Inventors: Vikas Palhan, Carol Kreader
  • Publication number: 20180340221
    Abstract: The present disclosure provides reagents and methods for molecular proximity detection of specific endogenous nucleic acids in situ using RNA-guided nucleic acid binding proteins.
    Type: Application
    Filed: September 23, 2016
    Publication date: November 29, 2018
    Applicant: SIGMA-ALDRICH CO. LLC
    Inventors: Gregory D Davis, Vikas B Palhan, Carol A. Kreader
  • Patent number: 10131902
    Abstract: The present disclosure provides methods and kits for isolating miRNAs from biological fluids.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: November 20, 2018
    Assignee: Sigma-Aldrich Co. LLC
    Inventor: Carol Kreader
  • Publication number: 20180044723
    Abstract: Processes, oligonucleotides, and kits for amplifying RNA. In particular, the processes generate and amplify cDNA libraries in which the orientation of the input RNA molecule is preserved in the products. Among the various aspects of the present disclosure is the provision of process for directionally amplifying RNA. The process comprises reverse transcribing at least one RNA molecule in the presence of a plurality of first synthesis primers to generate a plurality of first strands of complementary DNA (cDNA), wherein each of the first synthesis primers comprises a 3? sequence having complementarity to a portion of the RNA molecule, a non-complementary 5? sequence corresponding to one or more amplification primers, and optionally an internal tag sequence comprising a first tag sequence.
    Type: Application
    Filed: March 24, 2016
    Publication date: February 15, 2018
    Applicant: Sigma-Aldrich Co. LLC
    Inventors: Kenneth B Heuermann, Carol A Kreader, Jaime K Robert, Brian W Ward
  • Publication number: 20170362647
    Abstract: Methods for visualizing modified nucleotides in a specific nucleic acid sequence or specific nucleic acid sequence interactions in single cells, wherein the methods comprise coupling an in situ hybridization (ISH) reaction with a proximity ligation as say (PLA) reaction.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 21, 2017
    Applicant: SIGMA-ALDRICH CO. LLC
    Inventors: Vikas Palhan, Carol Kreader
  • Patent number: 9671393
    Abstract: The present invention provides isolated, non-viable bacterial cells comprising a plurality of nucleic acid crosslinks, methods for making said cells, and methods for using said cells to isolate DNA-protein complexes. In particular, the nucleic acids of the cells are crosslinked by contacting the cells with a furocoumarin compound and ultraviolet light.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: June 6, 2017
    Assignee: SIGMA-ALDRICH CO., LLC
    Inventors: Vikas B. Palhan, Carol Kreader, Ernie Mueller
  • Publication number: 20160376582
    Abstract: The present disclosure provides methods and kits for isolating miRNAs from biological fluids.
    Type: Application
    Filed: November 25, 2014
    Publication date: December 29, 2016
    Applicant: SIGMA-ALDRICH CO. LLC
    Inventor: Carol KREADER
  • Publication number: 20160376610
    Abstract: Fusion protein comprising a programmable DNA modification protein and a cell cycle regulated protein, and methods of using the fusion protein to modify chromosomal sequences and/or regulate gene expression in a cell cycle dependent manner.
    Type: Application
    Filed: June 24, 2016
    Publication date: December 29, 2016
    Inventors: Gregory D. Davis, Qingzhou Ji, Carol A. Kreader
  • 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: 20150079657
    Abstract: The present disclosure provides compositions and methods for acetylating histones at targeted chromosomal locations in a cell. In particular, the disclosure provides a fusion protein comprising a DNA binding domain and at least one histone acetyltransferase (HAT) domain, such that the DNA binding domain targets the fusion protein to a targeted chromosomal location and the HAT domain acetylates histones at the targeted location.
    Type: Application
    Filed: February 28, 2013
    Publication date: March 19, 2015
    Applicant: SIGMA-ALDRICH CO. LLC
    Inventors: Qingzhou Ji, Carol Kreader
  • Publication number: 20130172198
    Abstract: The present invention provides isolated, non-viable bacterial cells comprising a plurality of nucleic acid crosslinks, methods for making said cells, and methods for using said cells to isolate DNA-protein complexes. In particular, the nucleic acids of the cells are crosslinked by contacting the cells with a furocoumarin compound and ultraviolet light.
    Type: Application
    Filed: September 2, 2011
    Publication date: July 4, 2013
    Applicant: SIGMA-ALDRICH CO., LLC
    Inventors: Vikas B. Palhan, Carol Kreader, Ernie Mueller