Composition for forming organic film, patterning process, and compound
US-12584023-B2 · Mar 24, 2026 · US
having carbon atoms of imino groups being part of rings other than six-membered aromatic rings
having carbon atoms of imino groups being part of rings other than six-membered aromatic 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 | C07C251/20 |
| Official title | having carbon atoms of imino groups being part of rings other than six-membered aromatic rings |
| Display label | having carbon atoms of imino groups being part of rings other than six-membered aromatic rings |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Amine-substituted fluorescent compounds
US-2026015335-A1 · Jan 15, 2026 · US
Fluorinated fluorescent compounds
US-2026001857-A1 · Jan 1, 2026 · US
Red-shifted fluorophores
US-2025282744-A1 · Sep 11, 2025 · US
Compounds, compositions, methods of using, and methods for preparing compounds
US-12377069-B2 · Aug 5, 2025 · US
Red-shifted fluorophores
US-12344594-B2 · Jul 1, 2025 · US
Compound for optical absorbent
US-2025197346-A1 · Jun 19, 2025 · US
Novel Intermediates
US-2024190814-A1 · Jun 13, 2024 · US
Compounds, compositions, methods of using, and methods for preparing compounds
US-2024173288-A1 · May 30, 2024 · US
Composition for forming organic film, patterning process, and compound
US-2023280655-A1 · Sep 7, 2023 · US
Resin composition, coated and dried product, melt-kneaded product, optical filter, image display device, solid-state imaging element, squarylium compound, and method for producing the same
US-2023279244-A1 · Sep 7, 2023 · US
Analogues of mycosporine-like amino acid and use thereof as sunscreens
US-2023067277-A1 · Mar 2, 2023 · US
Small molecule inhibitors of a protein complex
US-2022304958-A1 · Sep 29, 2022 · US
Compounds, compositions, methods of using, and methods for preparing compounds
US-2021267932-A1 · Sep 2, 2021 · US
Red-shifted fluorophores
US-2021171490-A1 · Jun 10, 2021 · US
Compound and intermediate thereof
US-10640456-B2 · May 5, 2020 · US
Compound and intermediate thereof
US-2019308931-A1 · Oct 10, 2019 · US
Compounds for modulating integrin CD11B/CD18
US-10408820-B2 · Sep 10, 2019 · US
Electronic device and compound
US-10403824-B2 · Sep 3, 2019 · US
Azasteroidal mimics
US-10214496-B2 · Feb 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C251/20?
- CPC C07C251/20 is the Cooperative Patent Classification code for “having carbon atoms of imino groups being part of rings other than six-membered aromatic rings.”
- How many patents are filed under CPC C07C251/20 (having carbon atoms of imino groups being part of rings other than six-membered aromatic rings)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC C07C251/20 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).