Inventor · disambiguated record
Won Sik Gwak
Also filed as: GWAK WON SIK
6 granted patents·2 pending applications·7 citations·filing 2012–2021
72Inventor score
Top patents by PatentIndex Score
8 records- 0180US9290771B2Recombinant microorganism having an enhanced ability to produce putrescine and a method for producing putrescine using the sameCJ CHEILJEDANG CORP·Filed 2013·Granted Mar 22, 2016·3 cites·9 claims
- 0273US8927774B2Method for separating and purifying 1,4-diaminobutane from fermented solutionGWAK WON SIK·Filed 2012·Granted Jan 6, 2015·3 cites·19 claims
- 0369US9963421B2Refining method of organic amineCJ CHEILJEDANG CORP·Filed 2015·Granted May 8, 2018·1 cites·9 claims
- 0460US2023240332A1Method for preparing amino acid granule from fermentation brothCJ CHEILJEDANG CORP·Filed 2021·Application pending·0 cites
- 0559US9376370B2Method for purifying 1,4-diaminobutane, 1,4-diaminobutane purified by said method, and polyamide prepared therefromCJ CHEILJEDANG CORP·Filed 2013·Granted Jun 28, 2016·0 cites·20 claims
- 0655US2023392175A1Method for preparing amino acid mixed solid and apparatus for preparing amino acid mixed solidCJ CHEILJEDANG CORP·Filed 2021·Application pending·0 cites
- 0752US11098004B2Method of purifying 1,5-diaminopentaneCJ CHEILJEDANG CORP·Filed 2018·Granted Aug 24, 2021·0 cites·8 claims
- 0851US10450262B2Method for purifying 1,4-diaminobutaneCJ CHEILJEDANG CORP·Filed 2016·Granted Oct 22, 2019·0 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →