Inventor · disambiguated record
Ronald B. Leng
Also filed as: LENG RONALD · LENG RONALD B
16 granted patents·8 pending applications·25 citations·filing 1994–2022
89Inventor score
Files withDOW AGROSCIENCES LLC9CORTEVA AGRISCIENCE LLC4LENG RONALD B3BLAND DOUGLAS C2DOW GLOBAL TECHNOLOGIES LLC1
Top patents by PatentIndex Score
24 records- 0190US10087164B2Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct Suzuki couplingDOW AGROSCIENCES LLC·Filed 2017·Granted Oct 2, 2018·6 cites·45 claims
- 0289US9006379B2Process to produce polycarbamate using a gradient feed of ureaDOW GLOBAL TECHNOLOGIES LLC·Filed 2013·Granted Apr 14, 2015·6 cites·11 claims
- 0385US10544121B2Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki couplingDOW AGROSCIENCES LLC·Filed 2018·Granted Jan 28, 2020·2 cites·28 claims
- 0482US10570114B2Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki couplingDOW AGROSCIENCES LLC·Filed 2018·Granted Feb 25, 2020·2 cites·22 claims
- 0575US11401242B2Preparation of halogen analogs of picloramCORTEVA AGRISCIENCE LLC·Filed 2019·Granted Aug 2, 2022·1 cites·13 claims
- 0673US12017993B2Preparation of halogen analogs of picloramCORTEVA AGRISCIENCE LLC·Filed 2022·Granted Jun 25, 2024·0 cites·3 claims
- 0771US8304492B2Process for brominating butadiene/vinyl aromatic copolymersGREMINGER DOUGLAS C·Filed 2009·Granted Nov 6, 2012·3 cites·15 claims
- 0855US2022041574A1Pyrazole amine reactive crystallizationCORTEVA AGRISCIENCE LLC·Filed 2021·Application pending·0 cites
- 0955US2014155628A1Processes for the preparation of enaminesBLAND DOUGLAS C·Filed 2014·Application pending·0 cites
- 1054US5502235ASolventless process for making 2,6 difluorobenzonitrileDOWELANCO·Filed 1994·Granted Mar 26, 1996·5 cites·25 claims
- 1151US8071804B2Process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)phenoxy)propionic acid estersLENG RONALD B·Filed 2008·Granted Dec 6, 2011·0 cites·1 claims
- 1250US2023174490A1Improved synthesis of 6-aryl-4-aminopicolinatesCORTEVA AGRISCIENCE LLC·Filed 2021·Application pending·0 cites
- 1349US2012142944A1Processes for the preparation of enaminesBLAND DOUGLAS C·Filed 2011·Application pending·0 cites
- 1449US2020071290A1Pyrazole Amine Reactive CrystallizationDOW AGROSCIENCES LLC·Filed 2018·Application pending·0 cites
- 1549US2015329507A1Processes for the preparation of enaminesDOW AGROSCIENCES LLC·Filed 2015·Application pending·0 cites
- 1648US9598356B2Process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)phenoxy)propionic acid estersLENG RONALD B·Filed 2011·Granted Mar 21, 2017·0 cites·1 claims
- 1747US8058389B2Process for recovering brominated butadiene polymers from solutionLENG RONALD B·Filed 2008·Granted Nov 15, 2011·0 cites·15 claims
- 1845US8114943B2Process for brominating butadiene/vinyl aromatic copolymersMURRAY DANIEL J·Filed 2007·Granted Feb 14, 2012·0 cites·12 claims
- 1943US9464175B2Melt devolatilization extrusion processsKIM EUNG KYU·Filed 2012·Granted Oct 11, 2016·0 cites·19 claims
- 2043US2014187777A1Materials and methods for the base-assisted synthesis of substituted heteroaromatic compoundsDOW AGROSCIENCES LLC·Filed 2013·Application pending·0 cites
- 2142US10407391B2Method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinateDOW AGROSCIENCES LLC·Filed 2017·Granted Sep 10, 2019·0 cites·18 claims
- 2237US8710155B2Process for brominating unsaturated organic compounds with removal of quaternary ammonium or quaternary phosphonium monochloridesGORMAN DAVID B·Filed 2010·Granted Apr 29, 2014·0 cites·10 claims
- 2334US2016340311A1Recovery and/or reuse of palladium catalyst after a suzuki couplingDOW AGROSCIENCES LLC·Filed 2016·Application pending·0 cites
- 2427US6066734AChloropyrimidine processDOW AGROSCIENCES LLC·Filed 1998·Granted May 23, 2000·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →