Inventor · disambiguated record
Doo-Byung Lee
Also filed as: LEE DOO-BYUNG
7 granted patents·2 citations·filing 2003–2022
71Inventor score
Files withYUHAN CORP7
Top patents by PatentIndex Score
7 records- 0170US11623925B2Processes for preparing a diaminopyrimidine derivative or acid addition salt thereofYUHAN CORP·Filed 2022·Granted Apr 11, 2023·0 cites·6 claims
- 0264US11434224B2Processes for preparing a diaminopyrimidine derivative or acid addition salt thereofYUHAN CORP·Filed 2019·Granted Sep 6, 2022·0 cites·9 claims
- 0357US6706888B2Processes for preparing imidazole derivatives and salts thereofYUHAN CORP·Filed 2003·Granted Mar 16, 2004·2 cites·12 claims
- 0453US11198684B2Intermediates useful for the synthesis of a selective inhibitor against protein kinase and processes for preparing the sameYUHAN CORP·Filed 2018·Granted Dec 14, 2021·0 cites·27 claims
- 0549US10858353B2Intermediates useful for the synthesis of aminopyrimidine derivatives, process for preparing the same, and process for preparing aminopyrimidine derivatives using the sameYUHAN CORP·Filed 2018·Granted Dec 8, 2020·0 cites·28 claims
- 0647US12227478B2Processes for preparing (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3-amine or a salt thereof and processes for preparing tofacitinib using the sameYUHAN CORP·Filed 2020·Granted Feb 18, 2025·0 cites·10 claims
- 0744US7521565B2Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazole-1-yl)methyl]-4H-carbazol-4-one or its saltYUHAN CORP·Filed 2004·Granted Apr 21, 2009·0 cites·10 claims
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