Inventor · disambiguated record
Sun Ki Chang
Also filed as: CHANG SUN KI
11 granted patents·2 pending applications·12 citations·filing 2002–2019
82Inventor score
Files withST PHARM CO LTD7SAMCHULLY PHARM CO LTD2DONG A PHARM CO LTD1HYOSUNG CHEMICAL CORP1KWAK WOO-YOUNG1
Top patents by PatentIndex Score
13 records- 0180US10065933B2Method for preparing gadobutrolST PHARM CO LTD·Filed 2015·Granted Sep 4, 2018·3 cites·14 claims
- 0279US9822084B2Method for preparing calcobutrolST PHARM CO LTD·Filed 2015·Granted Nov 21, 2017·2 cites·15 claims
- 0378US9006436B2Preparation method of intermediate of sitagliptinLIM GEUN GHO·Filed 2012·Granted Apr 14, 2015·7 cites·18 claims
- 0455US9790170B2Method for preparing lacosamideST PHARM CO LTD·Filed 2014·Granted Oct 17, 2017·0 cites·12 claims
- 0555US9249109B2Method for preparing dipeptidyl peptidase-IV inhibitor and intermediateDONG A PHARM CO LTD·Filed 2014·Granted Feb 2, 2016·0 cites·5 claims
- 0654US10428096B2Polyketone polymerization catalystHYOSUNG CHEMICAL CORP·Filed 2014·Granted Oct 1, 2019·0 cites·6 claims
- 0748US10702859B2Method for preparing ligand for polyketone polymerization catalystST PHARM CO LTD·Filed 2016·Granted Jul 7, 2020·0 cites·8 claims
- 0846US10538504B2Preparation method of intermediate for oxazolidinone derivativeST PHARM CO LTD·Filed 2016·Granted Jan 21, 2020·0 cites·17 claims
- 0945US10501403B2Method for preparation of (S)-N1-(2-aminoethyl)-3-(4-alkoxyphenyl)propane-1,2-diamine trihydrochlorideST PHARM CO LTD·Filed 2017·Granted Dec 10, 2019·0 cites·20 claims
- 1043US2006167277A1New aziridine derivatives and their preparation methodsSAMCHULLY PHARM CO LTD·Filed 2006·Application pending·0 cites
- 1140US12180237B2Method for preparing gadobutrolST PHARM CO LTD·Filed 2019·Granted Dec 31, 2024·0 cites·30 claims
- 1238US2012016125A1Method for preparing dipeptidyl peptidase-iv inhibitor and intermediateKWAK WOO YOUNG·Filed 2010·Application pending·0 cites
- 1337US7049447B2Aziridine derivatives and their preparation methodsSAMCHULLY PHARM CO LTD·Filed 2002·Granted May 23, 2006·0 cites·4 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →