Electrode active material precursor, method for preparing the same, electrode active material, and battery
US-2024079551-A1 · Mar 7, 2024 · US
Compounds of iron
Compounds of iron · 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 | C01G49/00 |
| Official title | Compounds of iron |
| Display label | Compounds of iron |
| Total patents | 188 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 15 |
| 2017 | 7 |
| 2018 | 18 |
| 2019 | 23 |
| 2020 | 19 |
| 2021 | 23 |
| 2022 | 19 |
| 2023 | 22 |
| 2024 | 15 |
| 2025 | 16 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Negative electrode active material for rechargeable battery using conversion reaction, and battery including the same
US-10505220-B2 · Dec 10, 2019 · US
LAYERED FeAs, METHOD OF PREPARING SAME, AND FeAs NANOSHEET EXFOLIATED FROM SAME
US-2019352744-A1 · Nov 21, 2019 · US
Mesoporous manganese ferrite fenton-like catalyst, preparation method therefor, and application thereof
US-2019240646-A1 · Aug 8, 2019 · US
Lithium-iron-phosphorus-sulfur-carbon composite and method for producing same
US-10367196-B2 · Jul 30, 2019 · US
Epsilon-type iron oxide magnetic particles and method for producing the same, magnetic powder, magnetic coating material and magnetic recording medium containing magnetic particles
US-2019228889-A1 · Jul 25, 2019 · US
Carbide, Nitride And Silicide Enhancers For Laser Absorption
US-2019225000-A1 · Jul 25, 2019 · US
Mixture of visible light-responsive photocatalytic titanium oxide fine particles, dispersion liquid thereof, method for producing dispersion liquid, photocatalyst thin film, and member having photocatalyst thin film on surface
US-2019217282-A1 · Jul 18, 2019 · US
Member for hydrogen production and hydrogen production apparatus
US-10343904-B2 · Jul 9, 2019 · US
Mnzn ferrite and its production method
US-2019062217-A1 · Feb 28, 2019 · US
Positive electrode active material for potassium ion secondary cell
US-2019067692-A1 · Feb 28, 2019 · US
Iron-silicon oxide particles having an improved heating rate
US-10204723-B2 · Feb 12, 2019 · US
Negative electrode active material for rechargeable battery using conversion reaction, and battery including the same
US-2019006705-A1 · Jan 3, 2019 · US
Member for hydrogen production and hydrogen production apparatus
US-2018370794-A1 · Dec 27, 2018 · US
Oriented body, method for producing the same, device for producing the same, and magnetic recording medium
US-2018366151-A1 · Dec 20, 2018 · US
Electrode material for battery and method for manufacturing same
US-2018358617-A1 · Dec 13, 2018 · US
Aqueous compositions for hair treatment comprising polyorganosiloxanes with polyhydroxyaromatic moieties
US-2018346653-A1 · Dec 6, 2018 · US
Light emitting shell in shell microcapsules
US-2018327659-A1 · Nov 15, 2018 · US
Ferrite powder for bonded magnets, method for producing the same and ferrite bonded magnet
US-2018244537-A1 · Aug 30, 2018 · US
Method for producing iron-based oxide magnetic particle powder
US-2018208479-A1 · Jul 26, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01G49/00?
- CPC C01G49/00 is the Cooperative Patent Classification code for “Compounds of iron.”
- How many patents are filed under CPC C01G49/00 (Compounds of iron)?
- Our database includes 188 publications tagged with this CPC code.
- Is patent activity under CPC C01G49/00 growing?
- Publication counts under this code: 15 in 2024 vs 16 in 2025 (latest complete years).