Patents by Inventor Lieven Stuyver

Lieven Stuyver 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: 10100076
    Abstract: The disclosed invention is a composition for and a method of seating a Flaviviridae (including BVDV and HCV), Orthomyxoviridae (including Influenza A and B) or Paramyxoviridae (including RSV) infection, or conditions related to abnormal cellular proliferation, in a host, including animals, and especially humans, using a nucleoside of general formula (I)-(XXIII) or its pharmaceutically acceptable salt or prodrug. This invention also provides an effective process to quantify the viral load, and in particular BVDV, HCV or West Nile Virus load, in a host, using real-time polymerase chain reaction (“RT-PCR”). Additionally, the invention discloses probe molecules that can fluoresce proportionally to the amount of virus present in a sample.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: October 16, 2018
    Assignee: Gilead Pharmasset LLC
    Inventors: Lieven Stuyver, Kyoichi Watanabe
  • Patent number: 8859203
    Abstract: The present invention relates to a method for detection and/or genetic analysis of HBV in a biological sample, comprising hybridizing the polynucleic acids of the sample with a combination of at least two nucleotide probes, with said combination hybridizing specifically to a mutant target sequence chosen from the HBV RT pol gene region and/or to a mutant target sequence chosen from the HBV preCore region and/or to a mutant target sequence chosen from the HBsAg region of HBV and/or to a HBV genotype-specific target sequence, with said target sequences being chosen from FIG.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: October 14, 2014
    Assignee: Fujirebio Europe N.V.
    Inventors: Lieven Stuyver, Rudi Rossau, Geert Maertens
  • Patent number: 8835106
    Abstract: The present invention relates to a method for detection and/or genetic analysis of HBV in a biological sample, comprising hybridizing the polynucleic acids of the sample with a combination of at least two nucleotide probes, with said combination hybridizing specifically to a mutant target sequence chosen from the HBV RT pol gene region and/or to a mutant target sequence chosen from the HBV preCore region and/or to a mutant target sequence chosen from the HBsAg region of HBV and/or to a HBV genotype-specific target sequence, with said target sequences being chosen from FIG.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: September 16, 2014
    Assignee: Fujirebio Europe N.V.
    Inventors: Lieven Stuyver, Rudi Rossau, Geert Maertens
  • Publication number: 20140057863
    Abstract: The disclosed invention is a composition for and a method of treating a Flaviviridae (including BVDV and HCV), Orthomyxoviridae (including Influenza A and B) or Paramyxoviridae (including RSV) infection, or conditions related to abnormal cellular proliferation, in a host, including animals, and especially humans, using a nucleoside of general formula (I)-(XXIII) or its pharmaceutically acceptable salt or prodrug. This invention also provides an effective process to quantify the viral load, and in particular BVDV, HCV or West Nile Virus load, in a host, using real-time polymerase chain reaction (“RT-PCR”). Additionally, the invention discloses probe molecules that can fluoresce proportionally to the amount of virus present in a sample.
    Type: Application
    Filed: June 3, 2013
    Publication date: February 27, 2014
    Applicant: GILEAD SCIENCES, INC.
    Inventors: Lieven Stuyver, Kyoichi Watanabe
  • Patent number: 8101351
    Abstract: The invention relates to a process for genotyping any HCV isolate present in a biological sample, previously identified as being HCV positive, and for classifying said isolate according to the percentage of homology with other HCV isolates, comprising the steps of: contacting said sample in which the ribonucleotides or deoxyribonucleotides have been made accessible, if need be, under suitable denaturation, with at least one probe from about 10 to about 40 nucleotides, with said probe being liable to hybridize to a region being in the domain extending from nucleotide at position ?291 to nucleotide at position ?66 of the 5? untranslated region of one of the HCV isolates represented by their cDNA sequences, with said numbering of position beginning with the first ATG codon of the open reading frame encoding the HCV polyprotein, or with said probe being complementary to the above-defined probes, detecting the complexes possibly formed between said probe and the nucleotide sequence of the HCV isolate to be iden
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: January 24, 2012
    Assignee: Innogenetics N.V.
    Inventors: Geert Maertens, Lieven Stuyver, Rudi Rossau, Hugo Van Heuverswyn
  • Publication number: 20110269707
    Abstract: The disclosed invention is a composition for and a method of treating a Flaviviridae (including BVDV and HCV), Orthomyxoviridae (including Influenza A and B) or Paramyxoviridae (including RSV) infection, or conditions related to abnormal cellular proliferation, in a host, including animals, and especially humans, using a nucleoside of general formula (I)-(XXIII) or its pharmaceutically acceptable salt or prodrug. This invention also provides an effective process to quantify the viral load, and in particular BVDV, HCV or West Nile Virus load, in a host, using real-time polymerase chain reaction (“RT-PCR”). Additionally, the invention discloses probe molecules that can fluoresce proportionally to the amount of virus present in a sample.
    Type: Application
    Filed: August 5, 2010
    Publication date: November 3, 2011
    Inventors: Lieven Stuyver, Kyoichi Watanabe
  • Patent number: 7919247
    Abstract: A process for assessing mitochondrial toxicity of a compound that includes contacting nucleic acids from a host with an amplification reaction mixture that contains at least two primers that provide detectable signals, wherein: a first primer provides a first detectable signal upon amplification of a host mitochondrial nucleic acid; a second primer provides a second detectable signal upon amplification of a host nuclear nucleic acid; and comparing the first and second detectable signals.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: April 5, 2011
    Assignee: Pharmasset, Inc.
    Inventors: Lieven Stuyver, Michael J. Otto
  • Patent number: 7855052
    Abstract: The present application discloses and claims polynucleic acids relating to and/or containing HCV polynucleic acid sequences.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: December 21, 2010
    Assignee: N.V. Innogenetics S.A.
    Inventors: Geert Maertens, Lieven Stuyver
  • Patent number: 7718790
    Abstract: Processes and methods for the simultaneous quantification of nucleic acids in diseased cells that are based on real-time PCR are provided. The real-time PCR protocol is an excellent tool for reliable quantification of in vitro drug screening and evaluation protocols to determine the efficacy of potential anti-viral agents. Quantification using these simultaneous PCR cycle threshold (Ct) detection techniques during one-step real-time RT-PCR (Applied Biosystems, CA) eliminates the variability resulting from quantification of end-point RT-PCR products. In addition, the mitochondrial toxicity assay is an added tool to assess potential side-effects for these chemotherapeutic agents.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: May 18, 2010
    Assignee: Pharmasset, Inc.
    Inventors: Lieven Stuyver, Michael J. Otto
  • Publication number: 20100120121
    Abstract: The invention relates to a process for genotyping any HCV isolate present in a biological sample, previously identified as being HCV positive, and for classifying said isolate according to the percentage of homology with other HCV isolates, comprising the steps of: contacting said sample in which the ribonucleotides or deoxyribonucleotides have been made accessible, if need be, under suitable denaturation, with at least one probe from about 10 to about 40 nucleotides, with said probe being liable to hybridize to a region being in the domain extending from nucleotide at position ?291 to nucleotide at position ?66 of the 5? untranslated region of one of the HCV isolates represented by their cDNA sequences, with said numbering of position beginning with the first ATG codon of the open reading frame encoding the HCV polyprotein, or with said probe being complementary to the above-defined probes, detecting the complexes possibly formed between said probe and the nucleotide sequence of the HCV isolate to be iden
    Type: Application
    Filed: July 12, 2007
    Publication date: May 13, 2010
    Applicant: Innogenetics N.V.
    Inventors: Geert Maertens, Lieven Stuyver, Rudi Rossau, Hugo Van Heuverswyn
  • Publication number: 20090220950
    Abstract: Processes and methods for the simultaneous quantification of nucleic acids in diseased cells that are based on real-time PCR are provided. The real-time PCR protocol is an excellent tool for reliable quantification of in vitro drug screening and evaluation protocols to determine the efficacy of potential anti-viral agents. Quantification using these simultaneous PCR cycle threshold (Ct) detection techniques during one-step real-time RT-PCR (Applied Biosystems, CA) eliminates the variability resulting from quantification of end-point RT-PCR products. In addition, the mitochondrial toxicity assay is an added tool to assess potential side-effects for these chemotherapeutic agents.
    Type: Application
    Filed: December 3, 2007
    Publication date: September 3, 2009
    Applicant: Pharmasset, Inc.
    Inventors: LIEVEN STUYVER, Michael J. Otto
  • Publication number: 20090197244
    Abstract: The present invention relates to a method for detection and/or genetic analysis of HBV in a biological sample, comprising hybridizing the polynucleic acids of the sample with a combination of at least two nucleotide probes, with said combination hybridizing specifically to a mutant target sequence chosen from the HBV RT pol gene region and/or to a mutant target sequence chosen from the HBV preCore region and/or to a mutant target sequence chosen from the HBsAg region of HBV and/or to a HBV genotype-specific target sequence, with said target sequences being chosen from FIG.
    Type: Application
    Filed: May 22, 2007
    Publication date: August 6, 2009
    Applicant: INNOGENETICS N.V.
    Inventors: Lieven Stuyver, Rudi Rossau, Geert Maertens
  • Patent number: 7313357
    Abstract: The present invention relates to a method for detection and/or genetic analysis of HBV in a biological sample, comprising hybridizing the polynucleic acids of the sample with a combination of at least two nucleotide probes, with said combination hybridizing specifically to a mutant target sequence chosen from the HBV RT pol gene region and/or to a mutant target sequence chosen from the HBV preCore region and/or to a mutant target sequence chosen from the HBsAg region of HBV and/or to a HBV genotype-specific target sequence, with said target sequences being chosen from FIG.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: December 25, 2007
    Assignee: Innogenetics N.V.
    Inventors: Lieven Stuyver, Rudi Rossau, Geert Maertens
  • Publication number: 20070243524
    Abstract: The present application discloses and claims polynucleic acids relating to and/or containing HCV polynucleic acid sequences.
    Type: Application
    Filed: November 30, 2006
    Publication date: October 18, 2007
    Applicant: N.V. INNOGENETICS S.A.
    Inventors: Geert Maertens, Lieven Stuyver
  • Publication number: 20070196824
    Abstract: Processes and methods for the simultaneous quantification of nucleic acids in diseased cells that are based on real-time PCR are provided. The real-time PCR protocol is an excellent tool for reliable quantification of in vitro drug screening and evaluation protocols to determine the efficacy of potential anti-viral agents. Quantification using these simultaneous PCR cycle threshold (Ct) detection techniques during one-step real-time RT-PCR (Applied Biosystems, CA) eliminates the variability resulting from quantification of end-point RT-PCR products. In addition, the mitochondrial toxicity assay is an added tool to assess potential side-effects for these chemotherapeutic agents.
    Type: Application
    Filed: March 15, 2007
    Publication date: August 23, 2007
    Applicant: Pharmasset, Inc.
    Inventors: Lieven Stuyver, Michael Otto
  • Patent number: 7258977
    Abstract: The invention relates to a process for genotyping any HCV isolate present in a biological sample, previously identified as being HCV positive, and for classifying said isolate according to the percentage of homology with other HCV isolates, comprising the steps of: contacting said sample in which the ribonucleotides or deoxyribonucleotides have been made accessible, if need be, under suitable denaturation, with at least one probe from about 10 to about 40 nucleotides, with said probe being liable to hybridize to a region being in the domain extending from nucleotide at position -291 to nucleotide at position -66 of the 5? untranslated region of one of the HCV isolates represented by their cDNA sequences, with said numbering of position beginning with the first ATG codon of the open reading frame encoding the HCV polyprotein, or with said probe being complementary to the above-defined probes, detecting the complexes possibly formed between said probe and the nucleotide sequence of the HCV isolate to be iden
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: August 21, 2007
    Assignee: Innogenetics N.V.
    Inventors: Geert Maertens, Lieven Stuyver, Rudi Rossau, Hugo Van Heuverswyn
  • Patent number: 7258982
    Abstract: The invention relates to a process for genotyping any HCV isolate present in a biological sample, previously identified as being HCV positive, and for classifying said isolate according to the percentage of homology with other HCV isolates, comprising the steps of: contacting said sample in which the ribonucleotides or deoxyribonucleotides have been made accessible, if need be, under suitable denaturation, with at least one probe from about 10 to about 40 nucleotides, with said probe being liable to hybridize to a region being in the domain extending from nucleotide at position ?291 to nucleotide at position ?66 of the 5? untranslated region of one of the HCV isolates represented by their cDNA sequences, with said numbering of position beginning with the first ATG codon of the open reading frame encoding the HCV polyprotein, or with said probe being complementary to the above-defined probes, detecting the complexes possibly formed between said probe and the nucleotide sequence of the HCV isolate to be iden
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: August 21, 2007
    Assignee: Innogenetics, S.A.
    Inventors: Geert Maertens, Lieven Stuyver, Rudi Rossau, Hugo Van Heuverswyn
  • Patent number: 7255997
    Abstract: The present invention relates to a polynucleic acid composition comprising or consisting of at least one polynucleic acid containing 8 or more contiguous nucleotides corresponding to a nucleotide sequence from the region spanning positions 417 to 957 of the Core/E1 region of HCV type 3; and/or the region spanning positions 4664 to 4730 of the NS3 region of HCV type 3; and/or the region spanning positions 4892 to 5292 of the NS3/4 region of HCV type 3; and/or the region spanning positions 8 023 to 8 235 of the NS5 region of the BR36 subgroup of HCV type 3a; and/or the coding region of HCV type 4a starting at nucleotide 379 in the core region; and/or the coding region of HCV type 4; and/or the coding region of HCV type 5, with said nucleotide numbering being with respect to the numbering of HCV nucleic acids as show in Table 1, and with said polynucleic acids containing at least one nucleotide difference with known HCV type 1, and/or HCV type 2 genomes in the above-indicated regions, or the complement thereof.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: August 14, 2007
    Assignee: N.V. Innogenetics S.A.
    Inventors: Geert Maertens, Lieven Stuyver
  • Patent number: 7195765
    Abstract: The present invention relates to a polynucleic acid composition comprising or consisting of at least one polynucleic acid containing 8 or more contiguous nucleotides corresponding to a nucleotide sequence from the region spanning positions 417 to 957 of the Core/E1 region of HCV type 3; and/or the region spanning positions 4664 to 4730 of the NS3 region of HCV type 3; and/or the region spanning positions 4892 to 5292 of the NS3/4 region of HCV type 3; and/or the region spanning positions 8 023 to 8 235 of the NS5 region of the BR36 subgroup of HCV type 3a; and/or the coding region of HCV type 4a starting at nucleotide 379 in the core region; and/or the coding region of HCV type 4; and/or the coding region of HCV type 5, with said nucleotide numbering being with respect to the numbering of HCV nucleic acids as shown in Table 1, and with said polynucleic acids containing at least one nucleotide difference with known HCV type 1, and/or HCV type 2 genomes in the above-indicated regions, or the complement thereof.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: March 27, 2007
    Assignee: N.V. Innogenetics S.A.
    Inventors: Geert Maertens, Lieven Stuyver
  • Publication number: 20070031824
    Abstract: A process for assessing mitochondrial toxicity of a compound that includes contacting nucleic acids from a host with an amplification reaction mixture that contains at least two primers that provide detectable signals, wherein: a first primer provides a first detectable signal upon amplification of a host mitochondrial nucleic acid; a second primer provides a second detectable signal upon amplification of a host nuclear nucleic acid; and comparing the first and second detectable signals.
    Type: Application
    Filed: May 27, 2004
    Publication date: February 8, 2007
    Inventors: Lieven Stuyver, Michael Otto