Process for producing nitrobenzene
US-11136285-B2 · Oct 5, 2021 · US
Separation; Purification; Stabilisation; Use of additives
Separation; Purification; Stabilisation; Use of additives · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C201/16 |
| Official title | Separation; Purification; Stabilisation; Use of additives |
| Display label | Separation; Purification; Stabilisation; Use of additives |
| Total patents | 85 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 15 |
| 2017 | 9 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Crystalline 2-fluoro-3-nitrotoluene and process for the preparation thereof
US-2021292271-A1 · Sep 23, 2021 · US
Carbon sorbent for removal of metal catalysts from pharmaceuticals
US-11077421-B2 · Aug 3, 2021 · US
Zeolite adsorbents, preparation process therefor and uses thereof
US-10913695-B2 · Feb 9, 2021 · US
Processes and intermediates for NEP inhibitor synthesis
US-10851059-B2 · Dec 1, 2020 · US
Methods of preparing cytotoxic benzodiazepine derivatives
US-10844078-B2 · Nov 24, 2020 · US
Method for producing nitrobenzene
US-10815189-B2 · Oct 27, 2020 · US
Zeolite adsorbents based on barium, strontium, potassium and sodium, preparation process therefor, and uses thereof
US-2020316558-A1 · Oct 8, 2020 · US
Zeolite adsorbents, preparation process therefor and uses thereof
US-10745329-B2 · Aug 18, 2020 · US
Zeolitic adsorbents with large external surface area, process for preparing them and uses thereof
US-10675607-B2 · Jun 9, 2020 · US
Method for producing nitrobenzene
US-2020017434-A1 · Jan 16, 2020 · US
Methods of preparing cytotoxic benzodiazepine derivatives
US-2020002360-A1 · Jan 2, 2020 · US
Methods for producing chemical products with operation interruptions
US-10513487-B2 · Dec 24, 2019 · US
Methods of preparing cytotoxic benzodiazepine derivatives
US-10385071-B2 · Aug 20, 2019 · US
New processes and intermediates for nep inhibitor synthesis
US-2019202785-A1 · Jul 4, 2019 · US
Carbon sorbent for removal of metal catalysts from pharmaceuticals
US-2019099737-A1 · Apr 4, 2019 · US
Method for producing toluenediamine
US-10155720-B2 · Dec 18, 2018 · US
Process for producing nitrobenzene
US-2018346405-A1 · Dec 6, 2018 · US
Methods of preparing cytotoxic benzodiazepine derivatives
US-2018251474-A1 · Sep 6, 2018 · US
Zeolite adsorbents, preparation process therefor and uses thereof
US-2018201555-A1 · Jul 19, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C201/16?
- CPC C07C201/16 is the Cooperative Patent Classification code for “Separation; Purification; Stabilisation; Use of additives.”
- How many patents are filed under CPC C07C201/16 (Separation; Purification; Stabilisation; Use of additives)?
- Our database includes 85 publications tagged with this CPC code.
- Is patent activity under CPC C07C201/16 growing?
- Publication counts under this code: 8 in 2024 vs 3 in 2025 (latest complete years).