Ronald B. Leng

Person

Midland, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Preparation of halogen analogs of picloram
- Patent number 12,017,993
- Issue date Jun 25, 2024
- CORTEVA AGRISCIENCE LLC
- Jayachandran Devaraj
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of halogen analogs of picloram
- Patent number 11,401,242
- Issue date Aug 2, 2022
- CORTEVA AGRISCIENCE LLC
- Jayachandran Devaraj
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine...
- Patent number 10,570,114
- Issue date Feb 25, 2020
- Dow AgroSciences LLC
- Jason S. Fisk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine...
- Patent number 10,544,121
- Issue date Jan 28, 2020
- Dow AgroSciences LLC
- Jason S. Fisk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-...
- Patent number 10,407,391
- Issue date Sep 10, 2019
- Dow AgroSciences LLC
- Jason S. Fisk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine...
- Patent number 10,087,164
- Issue date Oct 2, 2018
- Dow AgroSciences LLC
- Jason S. Fisk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process to produce polycarbamate using a gradient feed of urea
- Patent number 9,683,082
- Issue date Jun 20, 2017
- Dow Global Technologies LLC
- Xinrui Yu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)...
- Patent number 9,598,356
- Issue date Mar 21, 2017
- Dow AgroSciences LLC
- Ronald B. Leng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Melt devolatilization extrusion processs
- Patent number 9,464,175
- Issue date Oct 11, 2016
- Dow Global Technologies LLC
- Eung Kyu Kim
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process to produce polycarbamate using a gradient feed of urea
- Patent number 9,006,379
- Issue date Apr 14, 2015
- Dow Global Technologies LLC
- Xinrui Yu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for brominating unsaturated organic compounds with removal...
- Patent number 8,710,155
- Issue date Apr 29, 2014
- Dow Global Technologies LLC
- David B. Gorman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for brominating butadiene/vinyl aromatic copolymers
- Patent number 8,304,492
- Issue date Nov 6, 2012
- Dow Global Technologies LLC
- Douglas C. Greminger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for brominating butadiene/vinyl aromatic copolymers
- Patent number 8,114,943
- Issue date Feb 14, 2012
- Dow Global Technologies LLC
- Daniel J. Murray
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)...
- Patent number 8,071,804
- Issue date Dec 6, 2011
- Dow AgroSciences LLC
- Ronald B. Leng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for recovering brominated butadiene polymers from solution
- Patent number 8,058,389
- Issue date Nov 15, 2011
- Dow Global Technologies LLC
- Ronald B. Leng
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Chloropyrimidine process
- Patent number 6,066,734
- Issue date May 23, 2000
- Dow AgroSciences LLC
- Ronald B. Leng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2-ethoxy-4,6-dihydroxypyrimidine
- Patent number 5,552,546
- Issue date Sep 3, 1996
- DowElanco
- Douglas L. Pearson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Solventless process for making 2,6 difluorobenzonitrile
- Patent number 5,502,235
- Issue date Mar 26, 1996
- DowElanco
- Mark W. Zettler
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
IMPROVED SYNTHESIS OF 6-ARYL-4-AMINOPICOLINATES
- Publication number 20230174490
- Publication date Jun 8, 2023
- Corteva Agriscience LLC
- CHUNMING ZHANG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PREPARATION OF HALOGEN ANALOGS OF PICLORAM
- Publication number 20220371997
- Publication date Nov 24, 2022
- Corteva Agriscience LLC
- Jayachandran Devaraj
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PYRAZOLE AMINE REACTIVE CRYSTALLIZATION
- Publication number 20220041574
- Publication date Feb 10, 2022
- Corteva Agriscience LLC
- DEBOLEENA CHAKRABORTY
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PREPARATION OF HALOGEN ANALOGS OF PICLORAM
- Publication number 20210323923
- Publication date Oct 21, 2021
- Corteva Agriscience LLC
- Jayachandran Devaraj
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Pyrazole Amine Reactive Crystallization
- Publication number 20200071290
- Publication date Mar 5, 2020
- Dow AgroSciences LLC
- Deboleen Chakraborty
- C07 - ORGANIC CHEMISTRY
Information Patent Application
SYNTHESIS OF 6-ARYL-4-AMINOPICOLINATES AND 2-ARYL-6-AMINOPYRIMIDINE...
- Publication number 20180334444
- Publication date Nov 22, 2018
- Dow AgroSciences LLC
- Jason S. Fisk
- C07 - ORGANIC CHEMISTRY
Information Patent Application
SYNTHESIS OF 6-ARYL-4-AMINOPICOLINATES AND 2-ARYL-6-AMINOPYRIMIDINE...
- Publication number 20180334445
- Publication date Nov 22, 2018
- Dow AgroSciences LLC
- Jason S. F
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD OF PREPARING BENZYL 4-AMINO-3-CHLORO-5-FLUORO-6-(4-CHLORO-2-...
- Publication number 20180162814
- Publication date Jun 14, 2018
- Dow AgroSciences LLC
- Jason S. Fisk
- C07 - ORGANIC CHEMISTRY
Information Patent Application
SYNTHESIS OF 6-ARYL-4-AMINOPICOLINATES AND 2-ARYL-6-AMINOPYRIMIDINE...
- Publication number 20170334878
- Publication date Nov 23, 2017
- Dow AgroSciences LLC
- Jason S. Fisk
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
RECOVERY AND/OR REUSE OF PALLADIUM CATALYST AFTER A SUZUKI COUPLING
- Publication number 20160340311
- Publication date Nov 24, 2016
- Dow AgroSciences LLC
- Sanjib Biswas
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESS TO PRODUCE POLYCARBAMATE USING A GRADIENT FEED OF UREA
- Publication number 20160177033
- Publication date Jun 23, 2016
- DOW GLOBAL TECHNOLOGIES LLC
- Xinrui Yu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESSES FOR THE PREPARATION OF ENAMINES
- Publication number 20150329507
- Publication date Nov 19, 2015
- Dow AgroSciences LLC
- Douglas C. Bland
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process to Produce Polycarbamate Using a Gradient Feed of Urea
- Publication number 20150038669
- Publication date Feb 5, 2015
- DOW GLOBAL TECHNOLOGIES LLC
- Xinrui Yu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Melt Devolatilization Extrusion Processs
- Publication number 20140323644
- Publication date Oct 30, 2014
- Eung Kyu Kim
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
MATERIALS AND METHODS FOR THE BASE-ASSISTED SYNTHESIS OF SUBSTITUTE...
- Publication number 20140187777
- Publication date Jul 3, 2014
- Dow AgroSciences LLC
- Ronald Leng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESSES FOR THE PREPARATION OF ENAMINES
- Publication number 20140155628
- Publication date Jun 5, 2014
- Dow AgroSciences LLC
- Douglas C. Bland
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESSES FOR THE PREPARATION OF ENAMINES
- Publication number 20120142944
- Publication date Jun 7, 2012
- Dow AgroSciences LLC
- Douglas C. Bland
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR BROMINATING UNSATURATED ORGANIC COMPOUNDS WITH REMOVAL...
- Publication number 20120016088
- Publication date Jan 19, 2012
- David B. Gorman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR THE MANUFACTURE OF R-(+)-2-(4-(4-CYANO-2-FLUOROPHENOXY)...
- Publication number 20110152560
- Publication date Jun 23, 2011
- Dow AgroSciences LLC
- Ronald B. Leng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR BROMINATING BUTADIENE/VINYL AROMATIC COPOLYMERS
- Publication number 20110060104
- Publication date Mar 10, 2011
- Douglas C. Greminger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for brominating butadiene/vinyl aromatic copolymers
- Publication number 20090292079
- Publication date Nov 26, 2009
- Daniel J. Murray
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR THE MANUFACTURE OF R-(+)-2-(4-(4-CYANO-2-FLUOROPHENOXY)...
- Publication number 20090112015
- Publication date Apr 30, 2009
- Dow AgroSciences LLC
- Ronald B. Leng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for Recovering Brominated Butadiene Polymers from Solution
- Publication number 20090008236
- Publication date Jan 8, 2009
- DOW GLOBAL TECHNOLOGIES, INC.
- Ronald B. Leng
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Ronald B. Leng

Person

Patents Grantslast 30 patents

Preparation of halogen analogs of picloram

Preparation of halogen analogs of picloram

Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine...

Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine...

Method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-...

Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine...

Process to produce polycarbamate using a gradient feed of urea

Process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)...

Melt devolatilization extrusion processs

Process to produce polycarbamate using a gradient feed of urea

Process for brominating unsaturated organic compounds with removal...

Process for brominating butadiene/vinyl aromatic copolymers

Process for brominating butadiene/vinyl aromatic copolymers

Process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)...

Process for recovering brominated butadiene polymers from solution

Chloropyrimidine process

Process for the preparation of 2-ethoxy-4,6-dihydroxypyrimidine

Solventless process for making 2,6 difluorobenzonitrile

Patents Applicationslast 30 patents

IMPROVED SYNTHESIS OF 6-ARYL-4-AMINOPICOLINATES

PREPARATION OF HALOGEN ANALOGS OF PICLORAM

PYRAZOLE AMINE REACTIVE CRYSTALLIZATION

PREPARATION OF HALOGEN ANALOGS OF PICLORAM

Pyrazole Amine Reactive Crystallization

SYNTHESIS OF 6-ARYL-4-AMINOPICOLINATES AND 2-ARYL-6-AMINOPYRIMIDINE...

SYNTHESIS OF 6-ARYL-4-AMINOPICOLINATES AND 2-ARYL-6-AMINOPYRIMIDINE...

METHOD OF PREPARING BENZYL 4-AMINO-3-CHLORO-5-FLUORO-6-(4-CHLORO-2-...

SYNTHESIS OF 6-ARYL-4-AMINOPICOLINATES AND 2-ARYL-6-AMINOPYRIMIDINE...

RECOVERY AND/OR REUSE OF PALLADIUM CATALYST AFTER A SUZUKI COUPLING

PROCESS TO PRODUCE POLYCARBAMATE USING A GRADIENT FEED OF UREA

PROCESSES FOR THE PREPARATION OF ENAMINES

Process to Produce Polycarbamate Using a Gradient Feed of Urea

Melt Devolatilization Extrusion Processs

MATERIALS AND METHODS FOR THE BASE-ASSISTED SYNTHESIS OF SUBSTITUTE...

PROCESSES FOR THE PREPARATION OF ENAMINES

PROCESSES FOR THE PREPARATION OF ENAMINES

PROCESS FOR BROMINATING UNSATURATED ORGANIC COMPOUNDS WITH REMOVAL...

PROCESS FOR THE MANUFACTURE OF R-(+)-2-(4-(4-CYANO-2-FLUOROPHENOXY)...

PROCESS FOR BROMINATING BUTADIENE/VINYL AROMATIC COPOLYMERS

Process for brominating butadiene/vinyl aromatic copolymers

PROCESS FOR THE MANUFACTURE OF R-(+)-2-(4-(4-CYANO-2-FLUOROPHENOXY)...

Process for Recovering Brominated Butadiene Polymers from Solution