C07C 201/00
Preparation of esters of nitric or nitrous acid or of compounds containing
Official title: Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
C07C201/00 (Preparation of esters of nitric or nitrous acid or of compounds containing) appears on 1,587 US grants and 890 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,587
- Published applications
- 890
- Assignees
- 702
- Inventors
- 3,636
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 60 | 0 |
| 1977 | 37 | 0 |
| 1978 | 23 | 0 |
| 1979 | 26 | 0 |
| 1980 | 45 | 0 |
| 1981 | 49 | 0 |
| 1982 | 36 | 0 |
| 1983 | 39 | 0 |
| 1984 | 60 | 0 |
| 1985 | 39 | 0 |
| 1986 | 44 | 0 |
| 1987 | 25 | 0 |
| 1988 | 33 | 0 |
| 1989 | 33 | 0 |
| 1990 | 37 | 0 |
| 1991 | 39 | 0 |
| 1992 | 37 | 0 |
| 1993 | 24 | 0 |
| 1994 | 33 | 0 |
| 1995 | 29 | 0 |
| 1996 | 12 | 0 |
| 1997 | 17 | 0 |
| 1998 | 33 | 0 |
| 1999 | 24 | 0 |
| 2000 | 24 | 0 |
| 2001 | 30 | 4 |
| 2002 | 25 | 21 |
| 2003 | 26 | 37 |
| 2004 | 31 | 40 |
| 2005 | 28 | 29 |
| 2006 | 20 | 20 |
| 2007 | 17 | 27 |
| 2008 | 14 | 21 |
| 2009 | 23 | 27 |
| 2010 | 19 | 41 |
| 2011 | 22 | 50 |
| 2012 | 22 | 47 |
| 2013 | 38 | 46 |
| 2014 | 44 | 41 |
| 2015 | 60 | 50 |
| 2016 | 39 | 43 |
| 2017 | 45 | 43 |
| 2018 | 37 | 33 |
| 2019 | 35 | 41 |
| 2020 | 25 | 30 |
| 2021 | 27 | 29 |
| 2022 | 24 | 39 |
| 2023 | 20 | 41 |
| 2024 | 20 | 32 |
| 2025 | 25 | 31 |
| 2026 | 13 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Production method for synthetic intermediate of monocyclic pyridine derivative8 Sep 2026US 12,729,191 B2Eisai R&D Management Co., Ltd.
- Nitrates of ethers of glycerol and ethanol as diesel cetane improvers and the production process of the same25 Aug 2026US 12,715,836 B2Petroleo Brasileiro S.A. - Petrobras
- Mixed aromatic amine monomers and polymers thereof16 Jun 2026US 12,655,252 B2Exxon Mobil Technology and Engineering Company
- Separation and purification method of 2-nitroethanol2 Jun 2026US 12,643,848 B2Fudan University
- Protoporphyrinogen oxidase inhibitors26 May 2026US 12,637,438 B2Enko Chem, Inc.
- Process for producing nitrobenzene27 Aug 2026US 2026/0250236 A1BASF SE
- Method of converting polymer comprising benzenoid rings into oxidation products13 Aug 2026US 2026/0234362 A1Agency for Science, Technology and Research
- Substituted Hydroxystilbene Compounds and Derivatives, Synthesis and Uses Thereof23 Jul 2026US 2026/0209152 A1Kynan Duke IP, LLC
- Conversion of a hydrocarbon feedstock derived from oxygen-rich biomass into aromatic isocyanates23 Jul 2026US 2026/0209166 A1Ifp Energies Nouvelles
- Processes and intermediates for synthesising opicapone23 Jul 2026US 2026/0209167 A1
Most cited
By later US patents
- Fluorinated xanthene derivatives146US 6,162,931 AMolecular Probes, Inc. · 2000
- Ligands for metals and improved metal-catalyzed processes based thereon143US 6,307,087 B1Massachusetts Institute of Technology · 2001
- Nitration process107US 5,313,009 ANRM International Technologies C.V. · 1994
- Continuous adiabatic process for the mononitration of benzene102US 4,091,042 AAmerican Cyanamid Company · 1978
- Ligands for metals and improved metal-catalyzed processes based thereon100US 6,395,916 B1Massachusetts Institute of Technology · 2002