Patents by Inventor Mark A. Nitz

Mark A. Nitz 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: 20210102949
    Abstract: A compound of formula (I): as described herein and methods and uses thereof as for mass tagging a biosensor or biologically active material.
    Type: Application
    Filed: September 18, 2020
    Publication date: April 8, 2021
    Inventors: Mark Nitz, Landon J. Edgar, Bradly G. Wouters, David Hedley, Lisa M. Willis, Matthew A. Lumba, Hanuel Park, Ravi N. Vellanki
  • Publication number: 20200362062
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: May 5, 2020
    Publication date: November 19, 2020
    Inventors: MITCHELL A. WINNIK, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Patent number: 10816552
    Abstract: A compound of formula (I): as described herein and methods and uses thereof as for mass tagging a biosensor or biologically active material.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: October 27, 2020
    Assignees: The Governing Council of the University of Toronto, University Health Network
    Inventors: Mark Nitz, Landon J. Edgar, Bradly G. Wouters, David Hedley, Lisa M. Willis, Matthew A. Lumba, Hanuel Park, Ravi N. Vellanki
  • Patent number: 10752707
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 25, 2020
    Assignee: FLUIDIGM CANADA INC.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Patent number: 10669358
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: June 2, 2020
    Assignee: FLUIDIGM CANADA INC.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Patent number: 10570114
    Abstract: Improved methods of synthesizing 6-aryl-4-aminopicolinates, such as arylalkyl and alkyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates and arylalkyl and alkyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates, are described herein. The improved methods include a direct Suzuki coupling step, which eliminates the protection/de-protection steps in the current chemical process, and therefore eliminates or reduces various raw materials, equipment and cycle time as well as modification of other process conditions including use of crude AP, use of ABA-diMe, and varying pH, catalyst concentration, solvent composition, and/or workup procedures. This includes synthesis of 2-aryl-6-aminopyrimidine-4-carboxylates.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: February 25, 2020
    Assignee: Dow AgroSciences LLC
    Inventors: Jason S. Fisk, Xiaoyong Li, Mark Muehlfeld, Robert S. Bauman, Jossian Oppenheimer, Siyu Tu, Mark A. Nitz, Reetam Chakrabarti, Shawn D. Feist, James W. Ringer, Ronald B. Leng
  • Patent number: 10544121
    Abstract: Improved methods of synthesizing 6-aryl-4-aminopicolinates, such as arylalkyl and alkyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates and arylalkyl and alkyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates, are described herein. The improved methods include a direct Suzuki coupling step, which eliminates the protection/de-protection steps in the current chemical process, and therefore eliminates or reduces various raw materials, equipment and cycle time as well as modification of other process conditions including use of crude AP, use of ABA-diMe, and varying pH, catalyst concentration, solvent composition, and/or workup procedures. This includes synthesis of 2-aryl-6-aminopyrimidine-4-carboxylates.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: January 28, 2020
    Assignee: Dow AgroSciences LLC
    Inventors: Jason S. Fisk, Xiaoyong Li, Mark Muehlfeld, Robert S. Bauman, Jossian Oppenheimer, Siyu Tu, Mark A. Nitz, Reetam Chakrabarti, Shawn D. Feist, James W. Ringer, Ronald B. Leng
  • Publication number: 20190345272
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: July 9, 2019
    Publication date: November 14, 2019
    Inventors: MITCHELL A. WINNIK, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Publication number: 20190250165
    Abstract: A compound of formula (I): as described herein and methods and uses thereof as for mass tagging a biosensor or biologically active material.
    Type: Application
    Filed: January 11, 2019
    Publication date: August 15, 2019
    Inventors: Mark Nitz, Landon J. Edgar, Bradly G. Wouters, David Hedley, Lisa M. Willis, Matthew A. Lumba, Hanuel Park, Ravi N. Vellanki
  • Publication number: 20190077890
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: July 27, 2018
    Publication date: March 14, 2019
    Applicant: FLUIDIGM CANADA INC.
    Inventors: MITCHELL A. WINNIK, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Patent number: 10222380
    Abstract: A compound of formula (I) as described herein and methods and uses thereof as probes in the mass tagging of biosensors or biologically active materials for use in mass cytometry analysis of tissue samples such as in the detection, labelling and quantification of oxygen-deprived cells by using, for example, tellurophene-tagged 2-nitroimidazole.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: March 5, 2019
    Assignees: The Governing Council of the University of Toronto, University Health Network
    Inventors: Mark Nitz, Landon J. Edgar, Bradley G. Wouters, David Hedley, Lisa M. Willis, Matthew A. Lumba, Hanuel Park, Ravi N. Vellanki
  • Publication number: 20180334445
    Abstract: Improved methods of synthesizing 6-aryl-4-aminopicolinates, such as arylalkyl and alkyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates and arylalkyl and alkyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates, are described herein. The improved methods include a direct Suzuki coupling step, which eliminates the protection/de-protection steps in the current chemical process, and therefore eliminates or reduces various raw materials, equipment and cycle time as well as modification of other process conditions including use of crude AP, use of ABA-diMe, and varying pH, catalyst concentration, solvent composition, and/or workup procedures. This includes synthesis of 2-aryl-6-aminopyrimidine-4-carboxylates.
    Type: Application
    Filed: July 26, 2018
    Publication date: November 22, 2018
    Applicant: Dow AgroSciences LLC
    Inventors: Jason S. F, Xiaoyong Li, Mark Muehlfeld, Robert S. Bauman, Jossian Oppenheimer, Siyu Tu, Mark A. Nitz, Reetam Chakrabarti, Shawn D. Feist, James W. Ringer, Ronald B. Leng
  • Publication number: 20180334444
    Abstract: Improved methods of synthesizing 6-aryl-4-aminopicolinates, such as arylalkyl and alkyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates and arylalkyl and alkyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates, are described herein. The improved methods include a direct Suzuki coupling step, which eliminates the protection/de-protection steps in the current chemical process, and therefore eliminates or reduces various raw materials, equipment and cycle time as well as modification of other process conditions including use of crude AP, use of ABA-diMe, and varying pH, catalyst concentration, solvent composition, and/or workup procedures. This includes synthesis of 2-aryl-6-aminopyrimidine-4-carboxylates.
    Type: Application
    Filed: July 26, 2018
    Publication date: November 22, 2018
    Applicant: Dow AgroSciences LLC
    Inventors: Jason S. Fisk, Xiaoyong Li, Mark Muehlfeld, Robert S. Bauman, Jooossian Oppenheimer, Siyu Tu, Mark A. Nitz, Reetam Chakrabarti, Shawn D. Feist, James W. Ringer, Ronald B. Leng
  • Patent number: 10087164
    Abstract: Improved methods of synthesizing 6-aryl-4-aminopicolinates, such as arylalkyl and alkyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates and arylalkyl and alkyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates, are described herein. The improved methods include a direct Suzuki coupling step, which eliminates the protection/de-protection steps in the current chemical process, and therefore eliminates or reduces various raw materials, equipment and cycle time as well as modification of other process conditions including use of crude AP, use of ABA-diMe, and varying pH, catalyst concentration, solvent composition, and/or workup procedures. This invention was expanded to include synthesis of 2-aryl-6-aminopyrimidine-4-carboxylates.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: October 2, 2018
    Assignee: Dow AgroSciences LLC
    Inventors: Jason S. Fisk, Xiaoyong Li, Mark Muehlfeld, Robert S. Bauman, Jossian Oppenheimer, Siyu Tu, Mark A. Nitz, Reetam Chakrabarti, Shawn D. Feist, James W. Ringer, Ronald B. Leng
  • Patent number: 10072104
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: September 11, 2018
    Assignee: Fluidigm Canada Inc.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Publication number: 20170334878
    Abstract: Improved methods of synthesizing 6-aryl-4-aminopicolinates, such as arylalky and alkyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates and arylalkyl and alkyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates, are described herein. The improved methods include a direct Suzuki coupling step, which eliminates the protection/de-protection steps in the current chemical process, and therefore eliminates or reduces various raw materials, equipment and cycle time as well as modification of other process conditions including use of crude AP, use of ABA-diMe, and varying pH, catalyst concentration, solvent composition, and/or workup procedures. This invention was expanded to include synthesis of 2-aryl-6-aminopyrimidine-4-carboxylates.
    Type: Application
    Filed: May 19, 2017
    Publication date: November 23, 2017
    Applicant: Dow AgroSciences LLC
    Inventors: Jason S. Fisk, Xiaoyong Li, Mark Muehlfeld, Robert S. Bauman, Jossian Oppenheimer, Siyu Tu, Mark A. Nitz, Reetam Chakrabarti, Shawn D. Feist, James W. Ringer, Ronald B. Leng
  • Publication number: 20170269094
    Abstract: A compound of formula (I) as described herein and methods and uses thereof as probes in the mass tagging of biosensors or biologically active materials for use in mass cytometry analysis of tissue samples such as in the detection, labelling and quantification of oxygen-deprived cells by using, for example, tellurophene-tagged 2-nitroimidazole.
    Type: Application
    Filed: August 20, 2015
    Publication date: September 21, 2017
    Inventors: MARK NITZ, LANDON J. EDGAR, BRADLEY G. WOUTERS, DAVID HEDLEY, LISA M. WILLIS, MATTHEW A. LUMBA, HANUEL PARK, RAVI N. VELLANKI
  • Patent number: 9296838
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: March 29, 2016
    Assignee: Fluidigm Canada, Inc.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Publication number: 20160025731
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: October 5, 2015
    Publication date: January 28, 2016
    Inventors: MITCHELL A. WINNIK, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Patent number: 9169335
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: October 27, 2015
    Assignee: Fluidigm Canada, Inc.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou