Method for producing indole compound
US-2017253577-A1 · Sep 7, 2017 · US
to a carbon atom of a non-condensed six-membered aromatic ring
to a carbon atom of a non-condensed six-membered aromatic ring · 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 | C07C271/28 |
| Official title | to a carbon atom of a non-condensed six-membered aromatic ring |
| Display label | to a carbon atom of a non-condensed six-membered aromatic ring |
| Total patents | 249 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 30 |
| 2016 | 24 |
| 2017 | 26 |
| 2018 | 29 |
| 2019 | 33 |
| 2020 | 23 |
| 2021 | 19 |
| 2022 | 15 |
| 2023 | 15 |
| 2024 | 16 |
| 2025 | 18 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method Of Preparing A Polycarbodiimide Polymer And Polycarbodiimide Polymer Prepared Thereby
US-2017166678-A1 · Jun 15, 2017 · US
Inhibitors of indoleamine 2,3-dioxygenase (IDO)
US-9675571-B2 · Jun 13, 2017 · US
Modulators of the relaxin receptor 1
US-2017144984-A1 · May 25, 2017 · US
Compounds, compositions, and methods for modulating ferroptosis and treating excitotoxic disorders
US-9580398-B2 · Feb 28, 2017 · US
Flexible to rigid nanoporous polyurethane-acrylate (PUAC) type materials for structural and thermal insulation applications
US-9550846-B2 · Jan 24, 2017 · US
Dental material, dental material composition, dental restorative material, and cured product
US-9511004-B2 · Dec 6, 2016 · US
Inhibitors of histone deacetylase
US-2016347761-A1 · Dec 1, 2016 · US
Isocyanate-containing prepolymer and method for making the same
US-9505871-B2 · Nov 29, 2016 · US
Compound, composition comprising the compound and cured product
US-9504632-B2 · Nov 29, 2016 · US
Process for the preparation of urethanes
US-9475762-B2 · Oct 25, 2016 · US
Molecules having pesticidal utility, and intermediates, compositions, and processes, related thereto
US-2016304522-A1 · Oct 20, 2016 · US
Molecules having pesticidal utility, and intermediates, compositions, and processes, related thereto
US-2016302418-A1 · Oct 20, 2016 · US
Molecules Having Pesticidal Utility, and Intermediates, Compositions, and Processes, Related Thereto
US-2016302417-A1 · Oct 20, 2016 · US
Compounds, compositions, and methods for modulating ferroptosis and treating excitotoxic disorders
US-2016297748-A1 · Oct 13, 2016 · US
High refractive index addition-fragmentation agents
US-2016279033-A1 · Sep 29, 2016 · US
Modulators of the relaxin receptor 1
US-9452973-B2 · Sep 27, 2016 · US
Phenylcarbamate derivatives as formyl peptide receptor modulators
US-2016272581-A1 · Sep 22, 2016 · US
Inhibitors of histone deacetylase
US-9447030-B2 · Sep 20, 2016 · US
Inhibitors of histone deacetylase
US-2016251351-A1 · Sep 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C271/28?
- CPC C07C271/28 is the Cooperative Patent Classification code for “to a carbon atom of a non-condensed six-membered aromatic ring.”
- How many patents are filed under CPC C07C271/28 (to a carbon atom of a non-condensed six-membered aromatic ring)?
- Our database includes 249 publications tagged with this CPC code.
- Is patent activity under CPC C07C271/28 growing?
- Publication counts under this code: 16 in 2024 vs 18 in 2025 (latest complete years).