Purkayastha; Subhasish

Patent Applications and Registrations

Patent applications and USPTO patent grants for Purkayastha; Subhasish.The latest application filed is for "multiplexed external calibrator and control for screening and diagnostic assays".

Company Profile

5.40.49

Purkayastha; Subhasish - Framingham MA
Purkayastha; Subhasish - Acton MA
Purkayastha; Subhasish - Aton MA
Purkayastha; Subhasish - Action MA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Multiplexed External Calibrator And Control For Screening And Diagnostic Assays App 20220308066 - Cournoyer; Jason ; et al.	2022-09-29
Integrated sample processing system with multiple detection capability Grant 11,402,386 - Hudson , et al. August 2, 2	2022-08-02
Methods And Systems For Detection Of Vitamin D Metabolites App 20210088486 - COURNOYER; Jason Joshua ; et al.	2021-03-25
Integrated Sample Processing System With Variable Workflows App 20210003551 - Hudson; Aaron ; et al.	2021-01-07
Integrated Sample Processing System With Multiple Detection Capability App 20210003586 - Hudson; Aaron ; et al.	2021-01-07
Magnetic elements for processing fluids Grant 10,656,147 - Campbell , et al.	2020-05-19
Microbial Identification and Quantitation Using MS Cleavable Tags App 20190212337 - Purkayastha; Subhasish ; et al.	2019-07-11
Microbial identification and quantitation using MS cleavable tags Grant 10,281,468 - Purkayastha , et al.	2019-05-07
Specific analysis of ketone and aldehyde analytes using reagent compounds, labeling strategies, and mass spectrometry workflow Grant 10,094,809 - Dey , et al. October 9, 2	2018-10-09
Analysis of a panel of cerebrotendinous xanthomatosis biomarkers using site specific derivation and LC/MS/MS workflow Grant 10,078,091 - DeBarber , et al. September 18, 2	2018-09-18
System and method for the detection of allergens Grant 9,970,942 - Lock , et al. May 15, 2	2018-05-15
Mass spectrometric identification and/or quantitation of catecholamines using aminopyrazoles Grant 9,964,552 - Dey , et al. May 8, 2	2018-05-08
Analysis of estradiol and analytes with phenolic OH using labeling chemistry and LC-MSMS workflow Grant 9,874,575 - Dey , et al. January 23, 2	2018-01-23
Specific Analysis Of Ketone And Aldehyde Analytes Using Reagent Compounds, Labeling Strategies, And Mass Spectrometry Workflow App 20170115258 - Dey; Subhakar ; et al.	2017-04-27
Magnetic Elements for Processing Fluids App 20170074871 - Campbell; John L. ; et al.	2017-03-16
Microbial Identification and Quantitation Using MS Cleavable Tags App 20170052180 - Purkayastha; Subhasish ; et al.	2017-02-23
Mass spectrometry quantitation of P450 isoforms in hepatocytes Grant 9,546,393 - Williamson , et al. January 17, 2	2017-01-17
Specific analysis of ketone and aldehyde analytes using reagent compounds, labeling strategies, and mass spectrometry workflow Grant 9,500,622 - Dey , et al. November 22, 2	2016-11-22
Mass Spectrometric Identification And/or Quantitation Of Catecholamines Using Aminopyrazoles App 20160305969 - Dey; Subhakar ; et al.	2016-10-20
Composition, method, and kit for calibrating a mass spectrometer Grant 9,257,267 - Dey , et al. February 9, 2	2016-02-09
System And Method For The Detection Of Allergens App 20160025741 - Lock; Stephen J. ; et al.	2016-01-28
Quantitative analysis of vitamin D3, vitamin D2, and metabolites thereof Grant 9,188,596 - Dey , et al. November 17, 2	2015-11-17
Analysis Of A Panel Of Cerebrotendinous Xanthomatosis Biomarkers Using Site Specific Derivation And Lc/ms/ms Workflow App 20150323554 - DeBarber; Andrea ; et al.	2015-11-12
Mass Spectrometry Quantitation Of P450 Isoforms In Hepatocytes App 20150140600 - Williamson; Brian L. ; et al.	2015-05-21
Labeling reagents for analyte determination and methods and compounds used in making the same Grant 8,975,404 - Pillai , et al. March 10, 2	2015-03-10
Analysis Of Estradiol And Analytes With Phenolic Oh Using Labeling Chemistry And Lc-msms Workflow App 20150051111 - Dey; Subhakar ; et al.	2015-02-19
Mass Spectrometry Quantitation Of P450 Protein Isoforms In Hepatocytes App 20150045256 - Williamson; Brian L. ; et al.	2015-02-12
Mass spectrometry quantitation of P450 isoforms in hepatocytes Grant 8,940,545 - Williamson , et al. January 27, 2	2015-01-27
Enhancement Of Sensitivity And Specificity Of Ketosteroids And Keto Or Aldehyde Containing Analytes App 20140349885 - Dey; Subhakar ; et al.	2014-11-27
Analyte determination utilizing mass tagging reagents comprising a non-encoded detectable label Grant 8,853,133 - Purkayastha , et al. October 7, 2	2014-10-07
Quantitative Analysis Of Vitamin D3, Vitamin D2, And Metabolites Thereof App 20140127825 - Dey; Subhakar ; et al.	2014-05-08
Composition, Method, And Kit For Calibrating A Mass Spectrometer App 20140027625 - Dey; Subhakar N. ; et al.	2014-01-30
Specific Analysis Of Ketone And Aldehyde Analytes Using Reagent Compounds, Labeling Strategies, And Mass Spectrometry Workflow App 20140004616 - Dey; Subhakar ; et al.	2014-01-02
Quantitative analysis of vitamin D3, vitamin D2, and metabolites thereof Grant 8,617,898 - Dey , et al. December 31, 2	2013-12-31
Amine-containing compound analysis methods Grant 8,569,071 - Nimkar , et al. October 29, 2	2013-10-29
Active esters of N-substituted piperazine acetic acids, including isotopically enriched versions thereof Grant 8,569,304 - Dey , et al. October 29, 2	2013-10-29
Mass tags for quantitative analyses Grant 8,501,498 - Yan , et al. August 6, 2	2013-08-06
Methods, mixtures, kits and compositions pertaining to analyte determination Grant 8,492,163 - Purkayastha , et al. July 23, 2	2013-07-23
Analyte Determination Utilizing Mass Tagging Reagents Comprising A Non-encoded Detectable Label App 20130184181 - Purkayastha; Subhasish ; et al.	2013-07-18
Mass tag reagents for simultaneous quantitation and identification of small molecules Grant 8,372,653 - Dey , et al. February 12, 2	2013-02-12
Analyte determination utilizing mass tagging reagents comprising a non-encoded detectable label Grant 8,362,242 - Purkayastha , et al. January 29, 2	2013-01-29
Isobarically labeled analytes and fragment ions derived therefrom Grant 8,273,706 - Pappin , et al. September 25, 2	2012-09-25
Tagging reagents and methods for hydroxylated compounds Grant 8,236,565 - Purkayastha , et al. August 7, 2	2012-08-07
Methods, Mixtures, Kits and Compositions Pertaining to Analyte Determination App 20120196378 - Purkayastha; Subhasish ; et al.	2012-08-02
Mass Tag Reagents For Simultaneous Quantitation And Identification Of Small Molecules App 20110183420 - DEY; Subhakar ; et al.	2011-07-28
Quantitative Analysis Of Vitamin D3, Vitamin D2, And Metabolites Thereof App 20110183429 - DEY; Subhakar ; et al.	2011-07-28
Analysis of Amino Acids And Amine-Containing Compounds Using Tagging Reagents and LC-MS Workflow App 20110143445 - DANIELS; Scott ; et al.	2011-06-16
Mass Spectrometry Quantitation of P450 Isoforms in Hepatocytes App 20110091981 - Williamson; Brian L. ; et al.	2011-04-21
Methods, mixtures, kits and compositions pertaining to analyte determination Grant 7,906,341 - Purkayastha , et al. March 15, 2	2011-03-15
Analyte Determination Utilizing Mass Tagging Reagents Comprising A Non-Encoded Detectable Label App 20110028685 - Purkayastha; Subhasish ; et al.	2011-02-03
Specific Analysis Of Analytes Using Reagent Compounds, Labeling Strategies, And Mass Spectrometry Workflow App 20110003395 - DEY; Subhakar ; et al.	2011-01-06
Mass Tags For Quantitative Analyses App 20100311175 - YAN; Xiongwei ; et al.	2010-12-09
Thyroxine-Containing Compound Analysis Methods App 20100136703 - PURKAYASTHA; Subhasish	2010-06-03
Isobarically Labeled Analytes And Fragment Ions Derived Therefrom App 20100129842 - PAPPIN; Darryl J.C. ; et al.	2010-05-27
Amine-containing Compound Analysis Methods App 20100093011 - NIMKAR; Subodh B. ; et al.	2010-04-15
Active Esters of N-Substituted Piperazine Acetic Acids, Including Isotopically Enriched Versions Thereof App 20090227791 - Dey; Subhakar ; et al.	2009-09-10
Isotopically Enriched N-Substituted Piperazine Acetic Acids And Methods For The Preparation Thereof App 20090176984 - Dey; Subhakar ; et al.	2009-07-09
Methods, Mixtures, Kits And Compositions Pertaining To Analyte Determination App 20080241955 - Purkayastha; Subhasish ; et al.	2008-10-02
Methods for isolating and labeling sample molecules Grant 7,364,911 - Aebersold , et al. April 29, 2	2008-04-29
Isotopically enriched N-substituted piperazine acetic acids and methods for the preparation thereof Grant 7,355,045 - Dey , et al. April 8, 2	2008-04-08
Tagging Reagents And Methods For Hydroxylated Compounds App 20080014642 - Purkayastha; Subhasish	2008-01-17
Methods, Mixtures, Kits and Compositions Pertaining to Analyte Determination App 20070218560 - Pillai; Sasi K. ; et al.	2007-09-20
Mass tags for quantitative analyses App 20070048752 - Yan; Xiongwei ; et al.	2007-03-01
Methods for isolation and labeling of sample molecules Grant 7,183,116 - Aebersold , et al. February 27, 2	2007-02-27
Thyroxine-containing compound analysis methods App 20070037286 - Purkayastha; Subhasish	2007-02-15
Amine-containing compound analysis methods App 20060183238 - Nimkar; Subodh B. ; et al.	2006-08-17
Mixtures of isobarically labeled analytes and fragments ions derived therefrom App 20050147982 - Pappin, Darryl J.C. ; et al.	2005-07-07
Mixtures of isobarically labeled analytes and fragments ions derived therefrom App 20050147985 - Pappin, Darryl J. C. ; et al.	2005-07-07
Isobarically labeled analytes and fragment ions derived therefrom App 20050148087 - Pappin, Darryl J.C. ; et al.	2005-07-07
Active esters of N-substituted piperazine acetic acids, including isotopically enriched versions thereof App 20050148771 - Dey, Subhakar ; et al.	2005-07-07
Isotopically enriched N-substituted piperazine acetic acids and methods for the preparation thereof App 20050148774 - Dey, Subhakar ; et al.	2005-07-07
Methods for isolating and labeling sample molecules App 20040265810 - Aebersold, Rudolf H ; et al.	2004-12-30
Methods for isolating and labeling sample molecules App 20040110186 - Aebersold, Rudolf H. ; et al.	2004-06-10

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