Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11879898 | Method for measuring testosterone using LC-MSMS | Michal Weinstock | 2024-01-23 |
| 11549944 | Microbial identification and quantitation using MS cleavable tags | Subhasish Purkayastha | 2023-01-10 |
| 10281468 | Microbial identification and quantitation using MS cleavable tags | Subhasish Purkayastha | 2019-05-07 |
| 10094809 | Specific analysis of ketone and aldehyde analytes using reagent compounds, labeling strategies, and mass spectrometry workflow | Sasi Pillai, Brian L. Williamson, Subhasish Purkayastha, Michal Weinstock | 2018-10-09 |
| 9964552 | Mass spectrometric identification and/or quantitation of catecholamines using aminopyrazoles | Subhasish Purkayastha | 2018-05-08 |
| 9874575 | Analysis of estradiol and analytes with phenolic OH using labeling chemistry and LC-MSMS workflow | Subhasish Purkayastha | 2018-01-23 |
| 9500622 | Specific analysis of ketone and aldehyde analytes using reagent compounds, labeling strategies, and mass spectrometry workflow | Sasi Pillal, Brian L. Williamson, Subhasish Purkayastha, Michal Weinstock | 2016-11-22 |
| 9257267 | Composition, method, and kit for calibrating a mass spectrometer | Marjorie S. Minkoff, Sasi Pillai, Subhasish Purkayastha, Brian L. Williamson | 2016-02-09 |
| 9188596 | Quantitative analysis of vitamin D3, vitamin D2, and metabolites thereof | Sasi Pillal, Brian L. Williamson, Subhasish Purkayastha | 2015-11-17 |
| 8975404 | Labeling reagents for analyte determination and methods and compounds used in making the same | Sasi Pillai, Subhasish Purkayastha, Darryl Pappin | 2015-03-10 |
| 8853133 | Analyte determination utilizing mass tagging reagents comprising a non-encoded detectable label | Subhasish Purkayastha | 2014-10-07 |
| 8617898 | Quantitative analysis of vitamin D3, vitamin D2, and metabolites thereof | Sasi Pillai, Brian L. Williamson, Subhasish Purkayastha | 2013-12-31 |
| 8569304 | Active esters of N-substituted piperazine acetic acids, including isotopically enriched versions thereof | Darryl Pappin, Subhasish Purkayastha, Sasi Pillai, James M. Coull | 2013-10-29 |
| 8501498 | Mass tags for quantitative analyses | Xiongwei Yan, Pau Miau Yuan, Sylvia W. Yuen, Kuo-Liang Hsi, Joe Y. L. Lam +5 more | 2013-08-06 |
| 8492163 | Methods, mixtures, kits and compositions pertaining to analyte determination | Subhasish Purkayastha, Scott Daniels | 2013-07-23 |
| 8372653 | Mass tag reagents for simultaneous quantitation and identification of small molecules | Subhasish Purkayastha | 2013-02-12 |
| 8362242 | Analyte determination utilizing mass tagging reagents comprising a non-encoded detectable label | Subhasish Purkayastha | 2013-01-29 |
| 8236565 | Tagging reagents and methods for hydroxylated compounds | Subhasish Purkayastha, Sasi Pillai | 2012-08-07 |
| 7906341 | Methods, mixtures, kits and compositions pertaining to analyte determination | Subhasish Purkayastha, Scott Daniels | 2011-03-15 |
| 7892737 | Compositions, kits and methods pertaining to stability modulation of PNA oligomer/nucleic acid complexes | Eric Anderson | 2011-02-22 |
| 7355045 | Isotopically enriched N-substituted piperazine acetic acids and methods for the preparation thereof | Darryl Pappin, Subhasish Purkayastha, Sasi Pillai, James M. Coull | 2008-04-08 |