C07D 213/803
Processes of preparation
C07D213/803 (Processes of preparation) appears on 198 US grants and 187 published applications in this corpus.
Search patents in C07D- Granted patents
- 198
- Published applications
- 187
- Assignees
- 128
- Inventors
- 518
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 7 | 3 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 4 | 2 |
| 2007 | 0 | 3 |
| 2008 | 2 | 5 |
| 2009 | 4 | 3 |
| 2010 | 6 | 7 |
| 2011 | 3 | 9 |
| 2012 | 5 | 13 |
| 2013 | 8 | 7 |
| 2014 | 11 | 14 |
| 2015 | 12 | 12 |
| 2016 | 22 | 22 |
| 2017 | 14 | 14 |
| 2018 | 12 | 8 |
| 2019 | 8 | 13 |
| 2020 | 12 | 6 |
| 2021 | 4 | 9 |
| 2022 | 3 | 4 |
| 2023 | 6 | 11 |
| 2024 | 3 | 7 |
| 2025 | 5 | 2 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods of making nicotinic acid derivatives29 Sep 2026US 12,747,211 B2Syngenta Crop Protection AG
- Tautomeric ligand enables biomimetic C—H hydroxylation with molecular oxygen22 Sep 2026US 12,741,937 B2The Scripps Research Institute
- Process for the preparation of 5-chloro-pyridine- 2-carboxylic acids and carboxylates with 3- sulfur containing substituents1 Sep 2026US 12,723,027 B2Syngenta Crop Protection AG
- Synthesis of 6-aryl-4-aminopicolinates18 Aug 2026US 12,709,598 B2Corteva Agriscience LLC
- Process for preparing [(3-hydroxypyridine-2-carbonyl)aminojalkanoic acids, esters and amides7 Jul 2026US 12,673,919 B2Akebia Therapeutics, Inc.
- Solid forms of {[5-(3-chlorophenyl)-3-hydroxypyridine-2-carbonyl]amino}acetic acid, compositions, and uses thereof10 Sep 2026US 2026/0263438 A1Akebia Therapeutics, Inc.
- Ionic liquid, its formulations and method of synthesis thereof6 Aug 2026US 2026/0226009 A1
- Vanillin pyridine carboxylates16 Jul 2026US 2026/0200855 A1Renovel Innovations, Inc.
- Photoacid generator, preparation method therefor, and photoresist composition comprising photoacid generator2 Jul 2026US 2026/0186412 A1TienMicro (Shandong) Co., Ltd.
- Method for preparing meta-(chiral allyl)-substituted pyridine compound30 Apr 2026US 2026/0116856 A1Nankai University
Most cited
By later US patents
- Processes for the facile synthesis of diaryl amines and analogues thereof42US 7,115,746 B2Vertex Pharmaceuticals Incorporated · 2006
- Synthesis and resolution of nicotine31US 9,809,567 B2Njoy, LLC · 2017
- Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides27US 9,145,366 B2Akebia Therapeutics, Inc. · 2015
- Process for preparing pyridine-2,3-dicarboxylic acid compounds25US 4,973,695 ASugai Chemical Ind. Co., Ltd. · 1990
- Solid forms of {[5-(3-chlorophenyl)-3-hydroxypyridine-2-carbonyl]amino}acetic acid, compositions, and uses thereof25US 9,701,636 B2Akebia Therapeutics, Inc. · 2017