Graphene powder, electrode paste for lithium ion battery and electrode for lithium ion battery
US-2017346098-A1 · Nov 30, 2017 · US
Size or surface area
Size or surface area · 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 | C01B2204/32 |
| Official title | Size or surface area |
| Display label | Size or surface area |
| Total patents | 411 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 31 |
| 2017 | 38 |
| 2018 | 42 |
| 2019 | 53 |
| 2020 | 44 |
| 2021 | 53 |
| 2022 | 39 |
| 2023 | 28 |
| 2024 | 35 |
| 2025 | 32 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing graphene
US-9822009-B2 · Nov 21, 2017 · US
Method for preparing graphene by using high speed homogenization pretreatment and high pressure homogenation
US-2017305747-A1 · Oct 26, 2017 · US
Graphene and the production of graphene
US-2017298523-A1 · Oct 19, 2017 · US
Method for preparing three-dimensional porous graphene material
US-2017267533-A1 · Sep 21, 2017 · US
One-step synthesis of graphene quantum dots
US-9751766-B1 · Sep 5, 2017 · US
Supercapacitor having highly conductive graphene foam electrode
US-2017200565-A1 · Jul 13, 2017 · US
Apparatus and method for producing a graphene material
US-9702050-B2 · Jul 11, 2017 · US
Graphene-ionic liquid composites
US-2017186561-A1 · Jun 29, 2017 · US
Absorptive pigments comprising graphenic carbon particles
US-2017158880-A1 · Jun 8, 2017 · US
Process for preparation of nanoporous graphene and graphene quantum dots
US-9637388-B2 · May 2, 2017 · US
Method and apparatus for modifying graphene
US-9611149-B2 · Apr 4, 2017 · US
Graphene-containing coating film, and method for preparing the same
US-2017059117-A1 · Mar 2, 2017 · US
Graphite Exfoliation Method
US-2017029280-A1 · Feb 2, 2017 · US
Functionalized graphene sheets having high carbon to oxygen ratios
US-9546092-B2 · Jan 17, 2017 · US
Graphene sheet and process of preparing the same
US-9527742-B2 · Dec 27, 2016 · US
Nanostructured graphene with atomically-smooth edges
US-2016368773-A1 · Dec 22, 2016 · US
Potatolike shaped graphite particles with low impurity rate at the surface, process for preparing same
US-9508983-B2 · Nov 29, 2016 · US
One-step synthesis of graphene quantum dots
US-9505623-B1 · Nov 29, 2016 · US
Method Of Pulsed Laser-Based Large Area Graphene Synthesis On Metallic And Crystalline Substrates
US-2016340797-A1 · Nov 24, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2204/32?
- CPC C01B2204/32 is the Cooperative Patent Classification code for “Size or surface area.”
- How many patents are filed under CPC C01B2204/32 (Size or surface area)?
- Our database includes 411 publications tagged with this CPC code.
- Is patent activity under CPC C01B2204/32 growing?
- Publication counts under this code: 35 in 2024 vs 32 in 2025 (latest complete years).