Perovskite precursor solution, perovskite thin film, perovskite cell and electrical device
US-2025351659-A1 · Nov 13, 2025 · US
containing rings
containing rings · 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 | C07C243/18 |
| Official title | containing rings |
| Display label | containing rings |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process For The Preparation Of Prothioconazole And Intermediates Thereof
US-2024025865-A1 · Jan 25, 2024 · US
Continuous Administration of Dopa Decarboxylase Inhibitors and Compositions for Same
US-2023321019-A1 · Oct 12, 2023 · US
Electrochemical sensor for detection of heavy metal ions, and methods of preparation thereof
US-11578033-B1 · Feb 14, 2023 · US
Inhibitors of histone lysine specific demethylase (LSD1) and histone deacetylases (HDACS)
US-11565994-B2 · Jan 31, 2023 · US
Pharmaceutical composition for ANO1 antagonist with anticancer activity
US-11274074-B2 · Mar 15, 2022 · US
Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound
US-11091452-B2 · Aug 17, 2021 · US
Continuous Administration of Dopa Decarboxylase Inhibitors and Compositions for Same
US-2021077442-A1 · Mar 18, 2021 · US
Inhibitors of histone lysine specific demethylase (lsd1) and histone deacetylases (hdacs)
US-2021009511-A1 · Jan 14, 2021 · US
Marmelin analogs and methods of use in cancer treatment
US-2020102264-A1 · Apr 2, 2020 · US
Pharmaceutical composition for ano1 antagonist with anticancer activity
US-2020087250-A1 · Mar 19, 2020 · US
Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound
US-2020048213-A1 · Feb 13, 2020 · US
Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound
US-10487065-B2 · Nov 26, 2019 · US
Continuous Administration of Dopa Decarboxylase Inhibitors and Compositions for Same
US-2019125708-A1 · May 2, 2019 · US
Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound
US-2019062289-A1 · Feb 28, 2019 · US
Azasteroidal mimics
US-10214496-B2 · Feb 26, 2019 · US
Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound
US-10173992-B2 · Jan 8, 2019 · US
Marmelin analogs and methods of use in cancer treatment
US-2018273469-A1 · Sep 27, 2018 · US
Continuous administration of dopa decarboxylase inhibitors and compositions for same
US-9993451-B2 · Jun 12, 2018 · US
Azasteroidal Mimics
US-2018155299-A1 · Jun 7, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C243/18?
- CPC C07C243/18 is the Cooperative Patent Classification code for “containing rings.”
- How many patents are filed under CPC C07C243/18 (containing rings)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC C07C243/18 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).