Two-dimensional covalent organic frameworks for harvesting mechanical energy
US-2026042725-A1 · Feb 12, 2026 · US
having amino groups linked to the six-membered aromatic ring by unsaturated carbon chains · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C211/28 |
| Official title | having amino groups linked to the six-membered aromatic ring by unsaturated carbon chains |
| Display label | having amino groups linked to the six-membered aromatic ring by unsaturated carbon chains |
| Total patents | 51 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 9 |
| 2017 | 6 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026042725-A1 · Feb 12, 2026 · US
US-2025250380-A1 · Aug 7, 2025 · US
US-2024287009-A1 · Aug 29, 2024 · US
US-12029708-B2 · Jul 9, 2024 · US
US-11739049-B2 · Aug 29, 2023 · US
US-2023218549-A1 · Jul 13, 2023 · US
US-11446261-B2 · Sep 20, 2022 · US
US-2021130282-A1 · May 6, 2021 · US
US-2021077427-A1 · Mar 18, 2021 · US
US-10899699-B2 · Jan 26, 2021 · US
US-10865163-B2 · Dec 15, 2020 · US
US-10639286-B2 · May 5, 2020 · US
US-2019225573-A1 · Jul 25, 2019 · US
US-2019183816-A1 · Jun 20, 2019 · US
US-10266481-B2 · Apr 23, 2019 · US
US-10201545-B2 · Feb 12, 2019 · US
US-10188615-B2 · Jan 29, 2019 · US
US-10155735-B2 · Dec 18, 2018 · US
US-10144700-B2 · Dec 4, 2018 · US
US-10100001-B2 · Oct 16, 2018 · US
Answers are generated from the same data shown on this page.