Patents by Inventor Baochuan Guo

Baochuan Guo 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: 20200341002
    Abstract: Disclosed are methods of detecting biomarkers in complex biological matrices. The method comprises providing a sample well coated with antibodies specific to target protein biomarker(s), contacting the sample well with a biological sample to capture target biomarkers, digesting target biomarkers, and analyzing the signature peptides resulting from digestion of target biomarkers to determine the amount of one or more protein biomarkers by a mass spectrometry method.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 29, 2020
    Inventors: Baochuan Guo, Ravali Algandula
  • Patent number: 10160965
    Abstract: Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples. In particular, a pre-treatment buffer is used to facilitate the extraction and purification of nucleic acids from biological samples, more specifically, removing inhibitors and impurities from biological samples and resulting in a highly concentrated and purified nucleic acids preparation.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: December 25, 2018
    Assignee: GLC Biotechnology, Inc.
    Inventors: Yiding Liu, Baochuan Guo
  • Patent number: 10144951
    Abstract: Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples such as stool. In particular, binding protein(s) is used to facilitate the extraction and purification of nucleic acids from stool samples, more specifically, depleting and blocking inhibitors and impurities from stool samples and resulting in a highly concentrated and purified nucleic acids preparation.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: December 4, 2018
    Assignee: GLC Biotechnology, Inc.
    Inventors: Yiding Liu, Baochuan Guo
  • Publication number: 20160333393
    Abstract: Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples such as stool. In particular, binding protein(s) is used to facilitate the extraction and purification of nucleic acids from stool samples, more specifically, depleting and blocking inhibitors and impurities from stool samples and resulting in a highly concentrated and purified nucleic acids preparation.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 17, 2016
    Inventors: YIDING LIU, BAOCHUAN GUO
  • Publication number: 20160312266
    Abstract: Provided herein is technology relating to automated capture and purify nucleic acids from biological samples. In particular, the technology relates to methods for automated capturing, enriching, and purifying multiple nucleic acid targets from human stool samples.
    Type: Application
    Filed: July 27, 2015
    Publication date: October 27, 2016
    Inventors: YIDING LIU, BAOCHUAN GUO
  • Publication number: 20150353918
    Abstract: Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples. In particular, a pre-treatment buffer is used to facilitate the extraction and purification of nucleic acids from biological samples, more specifically, removing inhibitors and impurities from biological samples and resulting in a highly concentrated and purified nucleic acids preparation.
    Type: Application
    Filed: May 14, 2015
    Publication date: December 10, 2015
    Applicant: GLC BIOTECHNOLOGY, INC.
    Inventors: YIDING LIU, BAOCHUAN GUO
  • Publication number: 20140024036
    Abstract: Methods and materials for detecting colorectal cancer using DNA markers from human stool. More specifically, methods and materials for quantification of FNN bacteria DNA per unit stool weight as a molecular marker for CRC diagnosis.
    Type: Application
    Filed: July 20, 2013
    Publication date: January 23, 2014
    Inventors: NAIZHEN WANG, BAOCHUAN GUO, YIDING LIU
  • Publication number: 20130244234
    Abstract: Methods of stool sample collection for improving DNA extraction and analysis from stool samples. More specifically, collecting stool samples from the same patient on two or more days (consecutively or randomly) and combining those stool samples for improved DNA extraction and analysis.
    Type: Application
    Filed: January 21, 2013
    Publication date: September 19, 2013
    Applicant: GLC BIOTECHNOLOGY, INC.
    Inventors: YIDING LIU, BAOCHUAN GUO, NAIZHEN WANG
  • Publication number: 20120252013
    Abstract: Methods for simultaneously surveying the status of a large number of DNA mutation markers are described. In addition, methods for simultaneously determining the methylation status at multiple sites of a collection of genes, in a single assay, are described.
    Type: Application
    Filed: December 13, 2011
    Publication date: October 4, 2012
    Applicant: CLEVELAND STATE UNIVERSITY
    Inventor: Baochuan Guo
  • Patent number: 8076082
    Abstract: Methods for simultaneously surveying the status of a large number of DNA mutation markers are described. In addition, methods for simultaneously determining the methylation status at multiple sites of a collection of genes, in a single assay, are described.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: December 13, 2011
    Assignee: Cleveland State University
    Inventor: Baochuan Guo
  • Publication number: 20100233679
    Abstract: Various methods and strategies are disclosed for detecting human tumors, and specifically colorectal tumors. Methods are also disclosed for detecting truncation mutations in a large background of wild-type DNA. And, methods for detecting AP mutations in a large background of wild-type DNA are also disclosed.
    Type: Application
    Filed: March 24, 2005
    Publication date: September 16, 2010
    Inventors: Baochuan Guo, Xiyuan Sun
  • Publication number: 20090042196
    Abstract: Methods for simultaneously surveying the status of a large number of DNA mutation markers are described. In addition, methods for simultaneously determining the methylation status at multiple sites of a collection of genes, in a single assay, are described.
    Type: Application
    Filed: October 13, 2006
    Publication date: February 12, 2009
    Inventor: Baochuan Guo
  • Publication number: 20080076130
    Abstract: A method of determining the haplotype structures of a nucleic acid comprising two or more single nucleotide polymorphisms (SNPs) of interest is provided. The method comprises obtaining an enriched nucleic acid fraction which comprises from 2 to 30 times more of one allelic variant of the nucleic acid than the other allelic variant of the nucleic acid, and genotyping the enriched nucleic acid fraction to identify the alleles in the two or more SNPs of interest that are present at a higher level or lower level than the other alleles in said two or more SNPs of interest, wherein the alleles that are present at a higher level are on the enriched allelic variant and form one haplotype and the alleles that are present at a lower level are on the non-enriched allelic variant and form the other haplotype. Kits for conducting the present methods are also provided.
    Type: Application
    Filed: July 19, 2007
    Publication date: March 27, 2008
    Inventor: Baochuan Guo
  • Publication number: 20070207494
    Abstract: Methods are provided for detecting a mutant polynucleotide in mixture of mutant polynucleotides, wild-type polynucleotides and unrelated polynucleotides. The method uses an extension primer complementary to a first target sequence in both the wild-type and mutant polynucleotides. The method also uses a probe complementary to a second target sequence in the wild-type polynucleotides but not in the mutant polynucleotides. Extension of the primers annealed to the first target sequence in mutant polynucleotides produces long extension products. Extension of the primers annealed to the first target sequence in wild-type polynucleotides is blocked by the probe annealed to the second target sequence. Short extension products or no extension products are produced. The extension products are isolated and used in a polymerase chain reaction (PCR). The PCR preferentially amplifies long extension products.
    Type: Application
    Filed: May 10, 2007
    Publication date: September 6, 2007
    Inventor: Baochuan Guo
  • Publication number: 20040241722
    Abstract: A method of determining the haplotype structures of a nucleic acid comprising two or more single nucleotide polymorphisms (SNPs) of interest is provided. The method comprises: obtaining an enriched nucleic acid fraction which comprises from 2 to 30 times more of one allelic variant of the nucleic acid than the other allelic variant of the nucleic acid; and genotyping the enriched nucleic acid fraction to identify the alleles in the two or more SNPs of interest that are present at a higher level or lower level than the other alleles in said two or more SNPs of interest, wherein the alleles that are present at a higher level are on the enriched allelic variant and form one haplotype and the alleles that are present at a lower level are on the non-enriched allelic variant and form the other haplotype. Kits for conducting the present methods are also provided.
    Type: Application
    Filed: March 11, 2004
    Publication date: December 2, 2004
    Inventor: Baochuan Guo
  • Publication number: 20040091905
    Abstract: Methods are provided for detecting a mutant polynucleotide in mixture of mutant polynucleotides, wild-type polynucleotides and unrelated polynucleotides. The method uses an extension primer complementary to a first target sequence in both the wild-type and mutant polynucleotides. The method also uses a probe complementary to a second target sequence in the wild-type polynucleotides but not in the mutant polynucleotides. Extension of the primers annealed to the first target sequence in mutant polynucleotides produces long extension products. Extension of the primers annealed to the first target sequence in wild-type polynucleotides is blocked by the probe annealed to the second target sequence. Short extension products or no extension products are produced. The extension products are isolated and used in a polymerase chain reaction (PCR). The PCR preferentially amplifies long extension products.
    Type: Application
    Filed: July 1, 2003
    Publication date: May 13, 2004
    Inventor: Baochuan Guo
  • Patent number: 6552335
    Abstract: The mass resolution and accuracy of delayed extraction matrix assisted desorption/ionization time of flight mass spectrometry is improved by spatially separating the electric field used for driving extraction/acceleration from the sample being analyzed.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: April 22, 2003
    Assignee: Cleveland State University
    Inventors: Baochuan Guo, Shenyi Wang
  • Patent number: 6479242
    Abstract: The VSET method comprises: providing a polynucleotide acid sample comprising at least one target site, and a first region of nucleotides immediately adjacent to the target site; preferably genomic DNA; preferably amplifying the polynucleotide; then combining the polynucleotide sample with: three dideoxynucletides selected from the group of ddGTP, ddATP, ddCTP, and ddTTP; and one deoxynucleotide selected from the group consisting of and dGTP, dATP, dCTP, and dTTP wherein the nucleotide of the deoxynucleotide is not the same as the nucleotide in the dideoxynulceotide; and a mini-sequencing primer complementary to the first region of nucleotides; extending the mini-sequencing primer with a dideoxynucletide or deoxynulceotide whose base is complementary to the base at the target site, to provide extension products; and then identifying the extension products, preferably by (MALDI-TOF) mass spectrometry.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: November 12, 2002
    Assignee: Cleveland State University
    Inventors: Baochuan Guo, Xiyuan Sun
  • Patent number: 5466430
    Abstract: Metallo-carbohedrene compositions, their method of manufacture and use are described. The metal component of the compositions is selected from the group of transition elements and preferably is titanium, zirconium, or vanadium. The compositions of the invention are molecular clusters in the ratio 8:12, metal to carbon respectively. A preferred embodiment is Ti.sub.8 C.sub.12 which has a cage-like structure (suggested 12 pentagonal rings and each of the rings is formed by two titanium and three carbon atoms) where each titanium is bound to three carbons. The compositions of this invention represent a new class of stable molecules (metallo-carbohedrenes) having a variety of applications and are particularly useful as electronic materials and catalysts.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: November 14, 1995
    Assignee: The Penn State Research Foundation
    Inventors: Albert W. Castleman, Jr., Baochuan Guo