Transition metal cyanide coordination compounds having multiple reactions
US-11198614-B2 · Dec 14, 2021 · US
Simple or complex iron cyanides
Simple or complex iron 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 | C01C3/12 |
| Official title | Simple or complex iron cyanides |
| Display label | Simple or complex iron cyanides |
| Total patents | 103 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 13 |
| 2017 | 15 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 8 |
| 2023 | 11 |
| 2024 | 14 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Synthesising a molecular magnetic material
US-2021107802-A1 · Apr 15, 2021 · US
Method for rapidly preparing prussian blue analogue with monoclinic crystal structure
US-2021043932-A1 · Feb 11, 2021 · US
Unique redox-active phenothiazine combinations with depressed melting points for increased solubility and method of use in energy storage and in redox flow batteries
US-2020373603-A1 · Nov 26, 2020 · US
Ammonia adsorbent
US-10647593-B2 · May 12, 2020 · US
Surface-modified cyanide-based transition metal compounds
US-10597303-B2 · Mar 24, 2020 · US
Surface-modified cyanide-based transition metal compounds
US-10597304-B2 · Mar 24, 2020 · US
Prussian blue positive electrode material, preparation method therefor, and electrochemical energy storage device
US-2020083533-A1 · Mar 12, 2020 · US
Transition metal cyanide coordination compounds having multiple reactions
US-2020071175-A1 · Mar 5, 2020 · US
Polyamide resin composition having thermal aging resistance and method for enhancing thermal aging resistance of polyamide resin
US-10526485-B2 · Jan 7, 2020 · US
Surface-modified cyanide-based transition metal compounds
US-2020002182-A1 · Jan 2, 2020 · US
Surface-modified cyanide-based transition metal compounds
US-2020002181-A1 · Jan 2, 2020 · US
High solubility iron hexacyanides
US-2019363388-A1 · Nov 28, 2019 · US
Surface-modified cyanide-based transition metal compounds
US-10414666-B2 · Sep 17, 2019 · US
High solubility iron hexacyanides
US-10374248-B2 · Aug 6, 2019 · US
Solid nanocomposite material based on hexa- or octacyanometallates of alkali metals, method for preparing same, and method for extracting metal cations
US-2019206583-A1 · Jul 4, 2019 · US
Purification and use of ferrocyanide solutions
US-10147947-B2 · Dec 4, 2018 · US
Electrode material, electrolyte, and lithium ion secondary battery
US-2018337432-A1 · Nov 22, 2018 · US
Purification and use of ferrocyanide solutions
US-2018269481-A1 · Sep 20, 2018 · US
Polyamide resin composition having thermal aging resistance and method for enhancing thermal aging resistance of polyamide resin
US-2018194942-A1 · Jul 12, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01C3/12?
- CPC C01C3/12 is the Cooperative Patent Classification code for “Simple or complex iron cyanides.”
- How many patents are filed under CPC C01C3/12 (Simple or complex iron cyanides)?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC C01C3/12 growing?
- Publication counts under this code: 14 in 2024 vs 6 in 2025 (latest complete years).