Inventor · disambiguated record
Nakyen Choy
Also filed as: CHOY NAKYEN
34 granted patents·13 pending applications·151 citations·filing 1993–2025
97Inventor score
Files withDOW AGROSCIENCES LLC19ADAMA MAKHTESHIM LTD6CORTEVA AGRISCIENCE LLC6LG CHEMICAL LTD4LUCKY LTD3
Top patents by PatentIndex Score
47 records- 0199US9850215B25-fluoro-4-imino-3-(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1 H)-one and processes for their preparationADAMA MAKHTESHIM LTD·Filed 2016·Granted Dec 26, 2017·31 cites·13 claims
- 0299US9840476B25-fluoro-4-imino-3-(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1H)-one and processes for their preparationADAMA MAKHTESHIM LTD·Filed 2016·Granted Dec 12, 2017·26 cites·20 claims
- 0397US9781935B2Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoDOW AGROSCIENCES LLC·Filed 2016·Granted Oct 10, 2017·13 cites·42 claims
- 0496US9795139B2Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoDOW AGROSCIENCES LLC·Filed 2016·Granted Oct 24, 2017·10 cites·20 claims
- 0595US10219516B2Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoDOW AGROSCIENCES LLC·Filed 2017·Granted Mar 5, 2019·6 cites·12 claims
- 0695US9795140B2Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoDOW AGROSCIENCES LLC·Filed 2016·Granted Oct 24, 2017·8 cites·20 claims
- 0794US2025008960A1Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoCORTEVA AGRISCIENCE LLC·Filed 2024·Application pending·0 cites
- 0893US11632957B2Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoCORTEVA AGRISCIENCE LLC·Filed 2020·Granted Apr 25, 2023·2 cites·1 claims
- 0993US10239817B2Process for the preparation of (1R,3R)- and (1S,3S)-2,2-dihalo-3-(substituted phenyl)cyclopropanecarboxylic acidsDOW AGROSCIENCES LLC·Filed 2017·Granted Mar 26, 2019·5 cites·10 claims
- 1092US10919864B25-fluoro-4-imino-3(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1H)-one and processes for their preparationADAMA MAKHTESHIM LTD·Filed 2020·Granted Feb 16, 2021·2 cites·20 claims
- 1192US2025359552A1Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoCORTEVA AGRISCIENCE LLC·Filed 2025·Application pending·0 cites
- 1291US12490741B2Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoCORTEVA AGRISCIENCE LLC·Filed 2024·Granted Dec 9, 2025·0 cites·10 claims
- 1390US12256738B2Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoCORTEVA AGRISCIENCE LLC·Filed 2023·Granted Mar 25, 2025·0 cites·1 claims
- 1489US10035772B2Processes for the preparation of 4-alkoxy-3-(acyl or alkyl)oxypicolinamidesDOW AGROSCIENCES LLC·Filed 2017·Granted Jul 31, 2018·6 cites·1 claims
- 1587US10358423B2Processes for the preparation of 4-alkoxy-3-(acyl or alkyl)oxypicolinamdesDOW AGROSCIENCES LLC·Filed 2018·Granted Jul 23, 2019·6 cites·15 claims
- 1687US10040764B2Processes for the preparation of 4-alkoxy-3-(acyl or alkyl)oxypicolinamdesDOW AGROSCIENCES LLC·Filed 2017·Granted Aug 7, 2018·7 cites·18 claims
- 1786US9718783B2Process for the preparation of 4-alkoxy-3-hydroxypicolinic acidsDOW AGROSCIENCES LLC·Filed 2016·Granted Aug 1, 2017·2 cites·1 claims
- 1884US9481651B2Process for the preparation of 4-alkoxy-3-hydroxypicolinic acidsDOW AGROSCIENCES LLC·Filed 2015·Granted Nov 1, 2016·2 cites·18 claims
- 1983US8497379B2Method and intermediates for the preparation of 2,2,2-trifluoro-N-(4-fluoro-3-pyridin-4-yl-benzyl)-acetamide hydrochlorideCHOI-SLEDESKI YONG MI·Filed 2012·Granted Jul 30, 2013·7 cites·4 claims
- 2082US2019308941A15-fluoro-4-imino-3(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1h)-one and processes for their preparationADAMA MAKHTESHIM LTD·Filed 2019·Application pending·0 cites
- 2182US2020024238A15-fluoro-4-imino-3(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1h)-one and processes for their preparationADAMA MAKHTESHIM LTD·Filed 2019·Application pending·0 cites
- 2279US2019090488A1Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoDOW AGROSCIENCES LLC·Filed 2018·Application pending·0 cites
- 2377US2015183750A15-fluoro-4-imino-3-(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1h)-one and processes for their preparationDOW AGROSCIENCES LLC·Filed 2014·Application pending·0 cites
- 2476US9522887B2Process for the preparation of dibromohydroxypicolinonitrileDOW AGROSCIENCES LLC·Filed 2015·Granted Dec 20, 2016·1 cites·12 claims
- 2576US9475771B2Process for the preparation of 4-alkoxy-3-hydroxypicolinic acidsDOW AGROSCIENCES LLC·Filed 2015·Granted Oct 25, 2016·1 cites·9 claims
- 2675US2018000087A1Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoDOW AGROSCIENCES LLC·Filed 2017·Application pending·0 cites
- 2775US2018007911A1Molecules having pesticidal utility, and intermediates, compositions, and processes, related theretoDOW AGROSCIENCES LLC·Filed 2017·Application pending·0 cites
- 2874US10550083B2Processes for the preparation of 4-alkoxy-3-hydroxypicolinic acidsDOW AGROSCIENCES LLC·Filed 2017·Granted Feb 4, 2020·1 cites·4 claims
- 2973US9951018B2Process for the preparation of 4-alkoxy-3-hydroxypicolinic acidsDOW AGROSCIENCES LLC·Filed 2017·Granted Apr 24, 2018·1 cites·8 claims
- 3071US2015183749A15-fluoro-4-imino-3-(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1h)-one and processes for their preparationDOW AGROSCIENCES LLC·Filed 2014·Application pending·0 cites
- 3170US9988365B22-(2,4-difluorophenyl)-1,1-difluoro-1-(5-substituted-pyridin-2-yl)-3-(1H-tetrazol-1-yl)propan-2-ols and processes for their preparationVIAMET PHARMACEUTICALS INC·Filed 2015·Granted Jun 5, 2018·1 cites·21 claims
- 3268US8217178B2[4-(5-aminomethyl-2-fluoro-phenyl)-piperidin-1-yl]-[7-flouro-1-(2-methoxy-ethyl)-4-trifluorom as an inhibitor of mast cell tryptaseCHOI-SLEDESKI YONG MI·Filed 2011·Granted Jul 10, 2012·1 cites·9 claims
- 3367US2018072686A15-fluoro-4-imino-3-(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1h)-one and processes for their preparationADAMA MAKHTESHIM LTD·Filed 2017·Application pending·0 cites
- 3462US7122686B2Analogs of discodermolide and dictyostatin-1, intermediates therefor and methods of synthesis thereofUNIV PITTSBURGH·Filed 2003·Granted Oct 17, 2006·2 cites·10 claims
- 3557US7968736B2Analogs of discodermolide and dictyostatin-1, intermediates therefor and methods of synthesis thereofUNIV PITTSBURGH & MDASH OF THE COMMONWELTH SYSTEMS OF HIGHER EDUCATION·Filed 2008·Granted Jun 28, 2011·0 cites·6 claims
- 3655US2006270862A1Analogs of discodermolide and dictyostatin-1, intermediates therefor and methods of synthesis thereofCURRAN DENNIS P·Filed 2006·Application pending·0 cites
- 3752US2023220427A1Processes related to formation of arylcyclopropyl carboxylic acidsCORTEVA AGRISCIENCE LLC·Filed 2021·Application pending·0 cites
- 3851US10301283B22-(2,4-difluorophenyl)-1,1-difluoro-1-(5-substituted-pyridin-2-yl)-3-(1h-tetrazol-1-yl)propan-2-ols and processes for their preparationVPS 3 INC·Filed 2018·Granted May 28, 2019·0 cites·6 claims
- 3947US2010174088A1Process for the preparation of benzimidazol thienylamine compounds and derivatives thereof useful as sodium/proton exchanger type 3 inhibitorsSANOFI AVENTIS US LLC·Filed 2009·Application pending·0 cites
- 4046US8633321B2Synthesis of (4-fluoro-3-piperidin-4-yl-benzyl)-carbamic acid tert-butyl ester and intermediates thereofCHOY NAKYEN·Filed 2012·Granted Jan 21, 2014·0 cites·31 claims
- 4144US5587388AIrreversible HIV protease inhibitors, intermediates, compositions and processes for the preparation thereofLUCKY LTD·Filed 1993·Granted Dec 24, 1996·5 cites·4 claims
- 4241US5744621AIrreversible HIV protease inhibitors, intermediates, compositions and processes for the preparation thereofLUCKY LTD·Filed 1996·Granted Apr 28, 1998·3 cites·1 claims
- 4336US5670517AIrreversible HIV protease inhibitors, compositions containing same and process for the preparation thereofLG CHEMICAL LTD·Filed 1996·Granted Sep 23, 1997·2 cites·8 claims
- 4433US5763631AIrreversible HIV protease inhibitors, intermediates, compositions and processes for the preparation thereofLUCKY LTD·Filed 1996·Granted Jun 9, 1998·0 cites·1 claims
- 4530US5773468AIrreversible HIV protease inhibitor having an anti-aids activity and process for the preparation thereofLG CHEMICAL LTD·Filed 1995·Granted Jun 30, 1998·0 cites·3 claims
- 4627US5696134AIrreversible HIV protease inhibitors, intermediates, compositions and processes for the preparation thereofLG CHEMICAL LTD·Filed 1995·Granted Dec 9, 1997·0 cites·14 claims
- 4727US5679687AIrreversible HIV protease inhibitors, compositions containing same and process for the preparation thereofLG CHEMICAL LTD·Filed 1996·Granted Oct 21, 1997·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →