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Patent applications and USPTO patent grants for Jegal; Seonyoung.The latest application filed is for "qualitative and quantitative analysis method for high molecular weight additive by using size-exclusion chromatography-pyrolysis-gas chromatography/mass spectrometry".
Patent | Date |
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Qualitative and quantitative analysis method for high molecular weight additive by using size-exclusion chromatography-pyrolysis-gas chromatography/mass spectrometry Grant 11,408,864 - Jegal , et al. August 9, 2 | 2022-08-09 |
Solid phase extraction method using micro device Grant 11,260,319 - Choi , et al. March 1, 2 | 2022-03-01 |
Micro device for solid phase extraction Grant 11,065,557 - Jegal , et al. July 20, 2 | 2021-07-20 |
Qualitative and Quantitative Analysis Method for High Molecular Weight Additive by Using Size-Exclusion Chromatography-Pyrolysis-Gas Chromatography/Mass Spectrometry App 20210080433 - Jegal; Seonyoung ;   et al. | 2021-03-18 |
Solid Phase Extraction Method Using Micro Device App 20200376410 - Choi; Junwon ;   et al. | 2020-12-03 |
Micro Device for Solid Phase Extraction App 20200215455 - Jegal; Seonyoung ;   et al. | 2020-07-09 |
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