Method of manufacturing billet for plastic working for producing composite member, and billet manufactured thereby
US-2020324343-A1 · Oct 15, 2020 · US
Carbon, graphite
Carbon, graphite · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B22F2302/40 |
| Official title | Carbon, graphite |
| Display label | Carbon, graphite |
| Total patents | 141 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 7 |
| 2017 | 17 |
| 2018 | 14 |
| 2019 | 12 |
| 2020 | 16 |
| 2021 | 18 |
| 2022 | 14 |
| 2023 | 17 |
| 2024 | 15 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing metal/polymer hybrid nanoparticles with narrow size distribution by miniemulsion polymerisation
US-2020261972-A1 · Aug 20, 2020 · US
Mixed powder for powder metallurgy, sintered body, and method of manufacturing sintered body
US-10710155-B2 · Jul 14, 2020 · US
Woven carbon fiber reinforced non-ferrous metal matrix composite
US-2020198014-A1 · Jun 25, 2020 · US
Graphene Composite Material For Sliding Contact
US-2020152399-A1 · May 14, 2020 · US
Method of forming an abrasive nickel-based alloy on a turbine blade tip
US-2020078867-A1 · Mar 12, 2020 · US
Sintered friction material
US-2020038959-A1 · Feb 6, 2020 · US
New product and use thereof
US-2019388964-A1 · Dec 26, 2019 · US
Mixed powder for powder metallurgy, sintered body, and method for producing sintered body
US-2019390308-A1 · Dec 26, 2019 · US
Method for producing a powder-metallurgical product
US-2019381570-A1 · Dec 19, 2019 · US
Method For Making Metal-Nanostructured Carbon Composites
US-2019381563-A1 · Dec 19, 2019 · US
Lubricant, mixed powder for powder metallurgy, and method for producing sintered body
US-10500638-B2 · Dec 10, 2019 · US
Manufacturing method of metal hybrid heat-dissipating materials
US-2019366429-A1 · Dec 5, 2019 · US
Method of making a transparent conductive composite material
US-10478899-B2 · Nov 19, 2019 · US
Copper plated carbon powders for copper-carbon composite fabrication
US-2019292060-A1 · Sep 26, 2019 · US
Hard particle powder for sintered body
US-2019256955-A1 · Aug 22, 2019 · US
Additive manufacture of electrically conductive materials
US-10265771-B2 · Apr 23, 2019 · US
Sintered friction material for a friction lining
US-10247271-B2 · Apr 2, 2019 · US
Alloy steel powder for powder metallurgy, and sintered body
US-10207328-B2 · Feb 19, 2019 · US
Nanostructured composite metal hydrides
US-2018333774-A1 · Nov 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B22F2302/40?
- CPC B22F2302/40 is the Cooperative Patent Classification code for “Carbon, graphite.”
- How many patents are filed under CPC B22F2302/40 (Carbon, graphite)?
- Our database includes 141 publications tagged with this CPC code.
- Is patent activity under CPC B22F2302/40 growing?
- Publication counts under this code: 15 in 2024 vs 8 in 2025 (latest complete years).