Graphene-ceramic hybrid coating layer, and method for preparing the same
US-9527773-B2 · Dec 27, 2016 · US
Graphite
Graphite · 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 | C04B2235/425 |
| Official title | Graphite |
| Display label | Graphite |
| Total patents | 443 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 54 |
| 2016 | 33 |
| 2017 | 41 |
| 2018 | 50 |
| 2019 | 36 |
| 2020 | 38 |
| 2021 | 53 |
| 2022 | 33 |
| 2023 | 40 |
| 2024 | 30 |
| 2025 | 29 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Refractory for steel casting, plate for sliding nozzle device, and method for producing refractory for steel casting
US-2016361758-A1 · Dec 15, 2016 · US
Diamond polycrystalline body and method for manufacturing the same, and tool
US-9487446-B2 · Nov 8, 2016 · US
Detonation- mediated carbon particle production method
US-2016318809-A1 · Nov 3, 2016 · US
Cordierite porous ceramic honeycomb articles with delayed microcrack evolution
US-9409826-B2 · Aug 9, 2016 · US
Method of making a diamond particle suspension and method of making a polycrystalline diamond article therefrom
US-9283657-B2 · Mar 15, 2016 · US
Refractory material and casting nozzle
US-9221099-B2 · Dec 29, 2015 · US
Magnesia carbon brick
US-2015368159-A1 · Dec 24, 2015 · US
Methods of improving sintering of PCD using graphene
US-9216493-B2 · Dec 22, 2015 · US
Magnesia carbon brick
US-2015353426-A1 · Dec 10, 2015 · US
High-hardness conductive diamond polycrystalline body and method of producing the same
US-9192899-B2 · Nov 24, 2015 · US
Product comprising an oriented function and process for obtaining same
US-2015329431-A1 · Nov 19, 2015 · US
Graphite sheet
US-2015329760-A1 · Nov 19, 2015 · US
Polycrystalline diamond body, cutting tool, wear-resistant tool, grinding tool, and method for producing polycrystalline diamond body
US-2015321317-A1 · Nov 12, 2015 · US
Method of forming zeolite shaped body with silica binder
US-9180441-B2 · Nov 10, 2015 · US
Diamond polycrystalline body and method for manufacturing the same, and tool
US-2015315087-A1 · Nov 5, 2015 · US
Cement to make thermal shock resistant ceramic honeycomb structures and method to make them
US-9174158-B2 · Nov 3, 2015 · US
Diamond polycrystalline body and method for manufacturing the same, and tool
US-2015307404-A1 · Oct 29, 2015 · US
Method for controlling characteristics of ceramic carbon composite, and ceramic carbon composite
US-2015299053-A1 · Oct 22, 2015 · US
Formation of voids within components formed from porous substrates
US-2015284297-A1 · Oct 8, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2235/425?
- CPC C04B2235/425 is the Cooperative Patent Classification code for “Graphite.”
- How many patents are filed under CPC C04B2235/425 (Graphite)?
- Our database includes 443 publications tagged with this CPC code.
- Is patent activity under CPC C04B2235/425 growing?
- Publication counts under this code: 30 in 2024 vs 29 in 2025 (latest complete years).