Unconventional phase hexagonal prussian blue analogs with open structures
US-2025388484-A1 · Dec 25, 2025 · US
Complex cyanides
Complex cyanides · 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 | C01C3/11 |
| Official title | Complex cyanides |
| Display label | Complex cyanides |
| Total patents | 63 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 12 |
| 2024 | 8 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hierachical structure of transition metal cyanide coordination compounds
US-12255291-B2 · Mar 18, 2025 · US
Positive electrode active material, sodium-ion secondary battery comprising the same and electrical apparatus
US-12151946-B2 · Nov 26, 2024 · US
LOW VACANCY Fe-SUBSTITUTED Mn-BASED PRUSSIAN BLUE ANALOGUE
US-2024308862-A1 · Sep 19, 2024 · US
LOW VACANCY Fe-SUBSTITUTED Mn-BASED PRUSSIAN BLUE ANALOGUE
US-2024308863-A1 · Sep 19, 2024 · US
Process for desorption of ammonia chemical species using carbon dioxide, ammonia chemical species-providing agent, and apparatus for adsorption and desorption of ammonia chemical species
US-12023648-B2 · Jul 2, 2024 · US
Hierachical structure of transition metal cyanide coordination compounds
US-2024097202-A1 · Mar 21, 2024 · US
Positive electrode active material, sodium-ion secondary battery comprising the same and electrical apparatus
US-2024083759-A1 · Mar 14, 2024 · US
Low vacancy Fe-substituted Mn-based Prussian blue analogue
US-11912581-B1 · Feb 27, 2024 · US
Highly active double metal cyanide compounds
US-11883803-B2 · Jan 30, 2024 · US
Granulated adsorbent and process of producing the same
US-2023405554-A1 · Dec 21, 2023 · US
Process for removing cyanide from a cyanide-bearing aqueous fluid
US-2023399241-A1 · Dec 14, 2023 · US
Desalination methods in desalination electrodes
US-2023365443-A1 · Nov 16, 2023 · US
Method for producing double metal cyanide catalysts
US-11813595-B2 · Nov 14, 2023 · US
Hierachical structure of transition metal cyanide coordination compounds
US-2023318047-A1 · Oct 5, 2023 · US
Hierachical structure of transition metal cyanide coordination compounds
US-2023318048-A1 · Oct 5, 2023 · US
Hierachical structure of transition metal cyanide coordination compounds
US-11769912-B1 · Sep 26, 2023 · US
Prussian blue-like transition metal cyanide, preparation method therefor, and related positive electrode plate, secondary battery, battery module, battery pack and device
US-2023227321-A1 · Jul 20, 2023 · US
Hierachical structure of transition metal cyanide coordination compounds
US-11695163-B1 · Jul 4, 2023 · US
Synthesising a molecular magnetic material
US-11691886-B2 · Jul 4, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01C3/11?
- CPC C01C3/11 is the Cooperative Patent Classification code for “Complex cyanides.”
- How many patents are filed under CPC C01C3/11 (Complex cyanides)?
- Our database includes 63 publications tagged with this CPC code.
- Is patent activity under CPC C01C3/11 growing?
- Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).