Electrode active material precursor, method for preparing the same, electrode active material, and battery
US-2024079551-A1 · Mar 7, 2024 · US
Oxides; Hydroxides {(C01G49/0018 takes precedence)}
Oxides; Hydroxides {(C01G49/0018 takes precedence)} · 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 | C01G49/02 |
| Official title | Oxides; Hydroxides {(C01G49/0018 takes precedence)} |
| Display label | Oxides; Hydroxides {(C01G49/0018 takes precedence)} |
| Total patents | 277 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 20 |
| 2016 | 17 |
| 2017 | 18 |
| 2018 | 25 |
| 2019 | 40 |
| 2020 | 30 |
| 2021 | 30 |
| 2022 | 31 |
| 2023 | 21 |
| 2024 | 29 |
| 2025 | 14 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Iron oxide magnetic particles
US-2024058449-A1 · Feb 22, 2024 · US
Apparatuses and methods for combustion and material synthesis
US-10088152-B2 · Oct 2, 2018 · US
A process and apparatus for purification of water
US-2018170772-A1 · Jun 21, 2018 · US
Compositions and methods for separating fluids
US-2018065125-A1 · Mar 8, 2018 · US
Oriented body containing e-iron oxide, method for producing the same, and device for producing the same
US-2017349448-A1 · Dec 7, 2017 · US
Nanoparticle capsules for photonic crystal color display in magnetic field
US-2017341946-A1 · Nov 30, 2017 · US
Methods of making metal-oxides and uses thereof for water treatment and energy applications
US-2017327389-A1 · Nov 16, 2017 · US
Molybdenum oxide composite and preparation method therefor
US-2017291166-A1 · Oct 12, 2017 · US
Apparatuses and methods for combustion and material synthesis
US-2017284662-A1 · Oct 5, 2017 · US
Method for preparing uniform metal oxide nanoparticles with high reproducibility
US-9771275-B2 · Sep 26, 2017 · US
Activation of Waste Metal Oxide as an Oxygen Carrier for Chemical Looping Combustion Applications
US-2017259240-A1 · Sep 14, 2017 · US
Chiral nematic nanocrystalline metal oxides
US-9758386-B2 · Sep 12, 2017 · US
Method and device for reducing iron oxide-containing feedstocks
US-9718701-B2 · Aug 1, 2017 · US
Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same
US-9691528-B2 · Jun 27, 2017 · US
Method for oxygen removal from hydrogen using adsorbent
US-2017174514-A1 · Jun 22, 2017 · US
System and Method for Manipulating Color Changing Materials
US-2017168328-A1 · Jun 15, 2017 · US
Crystalline transition metal oxy-hydroxide molybdate
US-2017165647-A1 · Jun 15, 2017 · US
Methods of making metal-oxides and uses thereof for water treatment and energy applications
US-9670069-B2 · Jun 6, 2017 · US
Method for treating titanium-containing feedstock
US-9656879-B2 · May 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01G49/02?
- CPC C01G49/02 is the Cooperative Patent Classification code for “Oxides; Hydroxides {(C01G49/0018 takes precedence)}.”
- How many patents are filed under CPC C01G49/02 (Oxides; Hydroxides {(C01G49/0018 takes precedence)})?
- Our database includes 277 publications tagged with this CPC code.
- Is patent activity under CPC C01G49/02 growing?
- Publication counts under this code: 29 in 2024 vs 14 in 2025 (latest complete years).