Method for manufacturing porous carbon sheet and porous carbon sheet
US-2024327221-A1 · Oct 3, 2024 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C01B32/184 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 1,111 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 105 |
| 2016 | 99 |
| 2017 | 105 |
| 2018 | 116 |
| 2019 | 111 |
| 2020 | 114 |
| 2021 | 89 |
| 2022 | 103 |
| 2023 | 89 |
| 2024 | 92 |
| 2025 | 80 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing graphene film and graphene film manufactured thereby
US-2015368112-A1 · Dec 24, 2015 · US
Method of making graphene layers, and articles made thereby
US-9214338-B2 · Dec 15, 2015 · US
Graphene manufacturing apparatus and method
US-2015353362-A1 · Dec 10, 2015 · US
Graphene, composition for preparing graphene, and method of preparing graphene using the composition
US-2015348666-A1 · Dec 3, 2015 · US
Graphene-layered structure, method of preparing the same, and transparent electrode and transistor including graphene-layered structure
US-9193133-B2 · Nov 24, 2015 · US
Rapid synthesis of graphene and formation of graphene structures
US-9187824-B2 · Nov 17, 2015 · US
Production of graphene nanoribbons by oxidative anhydrous acidic media
US-2015307357-A1 · Oct 29, 2015 · US
Method for fabricating graphene
US-9169568-B2 · Oct 27, 2015 · US
Method and apparatus for manufacturing graphene powder and graphene powder manufactured using the same
US-9162895-B2 · Oct 20, 2015 · US
Ultrathin graphene piece, apparatus for preparing ultrathin graphene piece, method for preparing ultrathin graphene piece, capacitor, and method of manufacturing capacitor
US-2015291431-A1 · Oct 15, 2015 · US
Ambient solid-state mechano-chemical reactions between nanoscale systems
US-2015291430-A1 · Oct 15, 2015 · US
Method for producing a graphene sheet on a platinum silicide, structures obtained using said method and uses thereof
US-9159550-B2 · Oct 13, 2015 · US
Process for producing highly conducting graphitic films from graphene liquid crystals
US-2015284253-A1 · Oct 8, 2015 · US
Method and system for graphene formation
US-9150418-B2 · Oct 6, 2015 · US
Forming Patterned Graphene Layers
US-2015279677-A1 · Oct 1, 2015 · US
Method for producing graphene by chemical exfoliation
US-9145302-B2 · Sep 29, 2015 · US
Method for preparing graphene, thin-film transistor, array substrate, and display panel
US-2015270406-A1 · Sep 24, 2015 · US
Production of Graphenic Carbon Particles Utilizing Hydrocarbon Precursor Materials
US-2015259211-A9 · Sep 17, 2015 · US
Preparing method of graphene by using near-infrared and apparatus therefor
US-2015259800-A1 · Sep 17, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/184?
- CPC C01B32/184 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B32/184 (Chemistry & Metallurgy)?
- Our database includes 1,111 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/184 growing?
- Publication counts under this code: 92 in 2024 vs 80 in 2025 (latest complete years).