Inventor

DONG WEITONG

CN15 patents

⚠️ This page may combine multiple inventors who share the name “DONG WEITONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BOEHRINGER INGELHEIM INT

8 patents

US12172961B2Dec 24, 2024

Intermediate compounds and methods

BOEHRINGER INGELHEIM INT0 citations57

US11603354B2Mar 14, 2023

Intermediate compounds and methods

BOEHRINGER INGELHEIM INT0 citations57

US10253026B2Apr 9, 2019

Process for the preparation of (r)-8-(3-aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1h-purine-2,6-dione

BOEHRINGER INGELHEIM INT1 citations56

US10131618B2Nov 20, 2018

Process for the preparation of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione

BOEHRINGER INGELHEIM INT0 citations50

US9938228B2Apr 10, 2018

Process for the preparation of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione

BOEHRINGER INGELHEIM INT0 citations50

US10106506B2Oct 23, 2018

General process for the preparation of 6-substituted or 5,6-disubstituted derivatives of 2-amino-isonicotinic acid

BOEHRINGER INGELHEIM INT0 citations49

US10280133B2May 7, 2019

Process for the manufacture of 4-aminobenzoamidine dihydrochloride

BOEHRINGER INGELHEIM INT0 citations48

US10040750B2Aug 7, 2018

Process for the manufacture of 4-aminobenzoamidine dihydrochloride

BOEHRINGER INGELHEIM INT0 citations48

ARENA PHARM INC

4 patents

US10071075B2Sep 11, 2018

Processes useful for the preparation of 1-[3-(4-bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenyl]-3-(2,4-difluoro-phenyl)-urea and crystalline forms related thereto

ARENA PHARM INC4 citations83

US9745270B2Aug 29, 2017

Processes useful for the preparation of 1-[3-(4-bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenyl]-3-(2,4-difluoro-phenyl)-urea and crystalline forms related thereto

ARENA PHARM INC5 citations83

US9353064B2May 31, 2016

Processes useful for the preparation of 1-[3-(4-bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenyl]-3-(2,4-difluoro-phenyl)-urea and crystalline forms related thereto

ARENA PHARM INC9 citations83

US10543193B2Jan 28, 2020

Processes useful for the preparation of 1-[3-(4-bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenyl]-3-(2,4-difluoro-phenyl)-urea and crystalline forms related thereto

ARENA PHARM INC0 citations51

CARLOS MARLON

1 patent

US9126946B2Sep 8, 2015

Processes useful for the preparation of 1-[3-(4-bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenyl]-3-(2,4-difluoro-phenyl)urea and crystalline forms related thereto

CARLOS MARLON8 citations79

DONG WEITONG

1 patent

US9399616B2Jul 26, 2016

Process for the manufacture of 4-aminobenzoamidine dihydrochloride

DONG WEITONG0 citations42

XING LIDONG

1 patent

US9399629B2Jul 26, 2016

Process for the manufacture of 3-oxo-tetrahydrofuran

XING LIDONG0 citations42