Patents by Inventor Karim Tabiti

Karim Tabiti 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: 20220205025
    Abstract: The present invention is directed to a method for determining of at least one microsatellite instability (MSI) based on a shift in a capillary electrophoresis (CE) profile (CE profile shift), the CE profile shift being determined by a comparison between the capillary electrophoresis (CE) profile of a target sequence of at least one microsatellite (MSI target profile) and the capillary electrophoresis (CE) profile of its specific wild type sequence (MS wild type profile). Further, the invention encompass suitable primer for use in said method, a kit comprising all essential components for performing said method successfully, a complete closed device as a system, namely “MSI Modaplex Analysis System” and a method for diagnosis of MSI phenotypes associated with an inflammation, cancer, inflammation associated cancer and/or auto immune disease, wherein the diagnosis comprises the method for determining of at least one CE profile shift as mentioned above.
    Type: Application
    Filed: May 12, 2020
    Publication date: June 30, 2022
    Applicant: Biotype GmbH
    Inventor: Karim Tabiti
  • Patent number: 8744777
    Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: June 3, 2014
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Publication number: 20120270222
    Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.
    Type: Application
    Filed: June 17, 2011
    Publication date: October 25, 2012
    Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventors: GREGOR SAGNER, KARIM TABITI, MARTIN GUTEKUNST, RICHIE SOONG
  • Patent number: 8024132
    Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: September 20, 2011
    Assignee: Roche Molecular Systems
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Publication number: 20100021923
    Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.
    Type: Application
    Filed: August 27, 2009
    Publication date: January 28, 2010
    Applicant: Roche Molecular Systems, Inc.
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Patent number: 7541448
    Abstract: The invention is directed to an oligonucleotide comprising a molecular rod, wherein preferentially the molecular rod covalently connects the 3? end of a first nucleotide residue with the 5? end of a second nucleotide residue. Such oligonucleotides are highly advantageous for real time PCR melting curve analysis.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: June 2, 2009
    Assignee: Roche Diagnostis Operations, Inc.
    Inventors: Dieter Heindl, Astrid Reiser, Karim Tabiti, Martina Junius, Alexander Hauber
  • Patent number: 7378241
    Abstract: The present invention concerns a method for determining the efficiency of the amplification of a target nucleic acid comprising the following steps: (i) preparation of a dilution series of the target nucleic acid, (ii) amplifying the target nucleic acid under defined reaction conditions, the amplification being measured in real-time (iii) setting a defined signal threshold value, (iv) determining the cycle number at which the signal threshold value is exceeded for various dilutions, (v) determining the amplification efficiency as a function of the amount of original target nucleic acid. The present invention also concerns a method for the quantification of a target nucleic acid in a sample in which the efficiency of the amplification reaction is determined in this manner and is taken into account in the quantification.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: May 27, 2008
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Patent number: 7125691
    Abstract: The present invention concerns a method for determining the efficiency of the amplification of a target nucleic acid comprising the following steps: (i) preparation of a dilution series of the target nucleic acid, (ii) amplifying the target nucleic acid under defined reaction conditions, the amplification being measured in real-time (iii) setting a defined signal threshold value, (iv) determining the cycle number at which the signal threshold value is exceeded for various dilutions, (v) determining the amplification efficiency as a function of the amount of original target nucleic acid. The present invention also concerns a method for the quantification of a target nucleic acid in a sample in which the efficiency of the amplification reaction is determined in this manner and is taken into account in the quantification.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: October 24, 2006
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Patent number: 7118867
    Abstract: The invention provides a method for quantitative multiplex PCR of two targets whereby one target is present in at least 100-fold molar excess over that of the other target. The method further comprises the addition of a thermostable DNA polymerase with a final concentration of at least 0.5 units/?l.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: October 10, 2006
    Assignees: Roche Diagnostics Corporation, Idaho Technology, Inc.
    Inventors: Karim Tabiti, Gisela Betzl, Richie Soong, Randy P. Rasmussen, Deepika Marine Desilva, John G. Ward, Hallegh Page Millward
  • Publication number: 20050142598
    Abstract: The invention is directed to an oligonucleotide comprising a molecular rod, wherein preferentially the molecular rod covalently connects the 3? end of a first nucleotide residue with the 5? end of a second nucleotide residue. Such oligonucleotides are highly advantageous for real time PCR melting curve analysis.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 30, 2005
    Inventors: Dieter Heindl, Astrid Reiser, Karim Tabiti, Martina Junius, Alexander Hauber
  • Publication number: 20050009048
    Abstract: The present invention concerns a method for determining the efficiency of the amplification of a target nucleic acid comprising the following steps: (i) preparation of a dilution series of the target nucleic acid, (ii) amplifying the target nucleic acid under defined reaction conditions, the amplification being measured in real-time (iii) setting a defined signal threshold value, (iv) determining the cycle number at which the signal threshold value is exceeded for various dilutions, (v) determining the amplification efficiency as a function of the amount of original target nucleic acid. The present invention also concerns a method for the quantification of a target nucleic acid in a sample in which the efficiency of the amplification reaction is determined in this manner and is taken into account in the quantification.
    Type: Application
    Filed: March 25, 2004
    Publication date: January 13, 2005
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Publication number: 20040153254
    Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.
    Type: Application
    Filed: December 24, 2003
    Publication date: August 5, 2004
    Applicant: Roche Molecular Systems, Inc.
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Patent number: 6691041
    Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: February 10, 2004
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Publication number: 20030215830
    Abstract: The new invention provides a method and a kit for quantitative multiplex PCR with a high dynamic range characterized in that a thermostable DNA Polymerase with a final concentration of at least 0.5 units/&mgr;l is use.
    Type: Application
    Filed: November 19, 2002
    Publication date: November 20, 2003
    Inventors: Karim Tabiti, Gisela Betzl, Richie Soong, Randy P. Rasmussen, Deepika Marine Desilva, John G. Ward, Haleigh Page Millward
  • Publication number: 20030165832
    Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.
    Type: Application
    Filed: March 30, 2001
    Publication date: September 4, 2003
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Publication number: 20020058262
    Abstract: The present invention concerns a method for determining the efficiency of the amplification of a target nucleic acid comprising the following steps: (i) preparation of a dilution series of the target nucleic acid, (ii) amplifying the target nucleic acid under defined reaction conditions, the amplification being measured in real-time (iii) setting a defined signal threshold value, (iv) determining the cycle number at which the signal threshold value is exceeded for various dilutions, (v) determining the amplification efficiency as a function of the amount of original target nucleic acid. The present invention also concerns a method for the quantification of a target nucleic acid in a sample in which the efficiency of the amplification reaction is determined in this manner and is taken into account in the quantification.
    Type: Application
    Filed: March 30, 2001
    Publication date: May 16, 2002
    Inventors: Gregor Sagner, Karim Tabiti, Martin Gutekunst, Richie Soong
  • Patent number: 6270965
    Abstract: The present invention concerns a method and a device which enables an integrated amplification and detection of nucleic acids.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: August 7, 2001
    Assignee: Roche Diagnostics, GmbH
    Inventors: Jörg Kleiber, Karim Tabiti, Gregor Sagner
  • Patent number: 5888746
    Abstract: A method for diagnosis or prognosis of a cancer is disclosed. The method comprises (i) detecting in a first biological sample protein tyrosine phosphate .alpha. (PTP.alpha.) or PTP.alpha. nucleic acid, and (ii) comparing the level of PTP.alpha. or PTP.alpha. nucleic acid in the first sample with the level in a second biological sample known to be from normal tissue. Any overexpression of PTP.alpha. or PTP.alpha. nucleic acid in the first sample compared to the second sample is indicative that the first sample is from a cancerous tissue.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: March 30, 1999
    Assignee: Institute of Molecular and Cell Biology
    Inventors: Karim Tabiti, Catherine Jane Pallen