Composite cemented carbide roll, and production method of composite cemented carbide roll
US-2021370371-A1 · Dec 2, 2021 · US
with more than 1.7% by weight of carbon
with more than 1.7% by weight of carbon · 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 | C22C38/56 |
| Official title | with more than 1.7% by weight of carbon |
| Display label | with more than 1.7% by weight of carbon |
| Total patents | 96 |
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 | 14 |
| 2017 | 9 |
| 2018 | 5 |
| 2019 | 12 |
| 2020 | 11 |
| 2021 | 8 |
| 2022 | 12 |
| 2023 | 9 |
| 2024 | 8 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Outer layer of rolling roll and composite roll for rolling
US-11052440-B2 · Jul 6, 2021 · US
Wear-resistant iron-based alloy compositions comprising chromium
US-2021197524-A1 · Jul 1, 2021 · US
Centrifugally cast composite roll for rolling and its production method
US-2021154712-A1 · May 27, 2021 · US
Sliding member, and sliding member of internal combustion engine
US-10982622-B2 · Apr 20, 2021 · US
Composite roll for rolling
US-10947611-B2 · Mar 16, 2021 · US
Stainless Steel Powder for Producing a Shaped Article
US-2020391286-A1 · Dec 17, 2020 · US
Density enhancement methods and compositions
US-10864577-B2 · Dec 15, 2020 · US
Non-magnetic, strong carbide forming alloys for powder manufacture
US-10851444-B2 · Dec 1, 2020 · US
Stainless steel alloys and turbocharger kinematic components formed from stainless steel alloys
US-10844465-B2 · Nov 24, 2020 · US
Iron-based sintered alloy and method for producing the same
US-2020332403-A1 · Oct 22, 2020 · US
Outer layer of rolling roll and composite roll for rolling
US-2020298294-A1 · Sep 24, 2020 · US
Thick steel plate for structural pipes or tubes, method of producing thick steel plate for structural pipes or tubes, and structural pipes and tubes
US-10767250-B2 · Sep 8, 2020 · US
Iron-based sintered alloy and method for producing the same
US-10745786-B2 · Aug 18, 2020 · US
Sliding member, and sliding member of internal combustion engine
US-2020248647-A1 · Aug 6, 2020 · US
Zinc-coated steel sheet with high resistance spot weldability
US-2020181729-A1 · Jun 11, 2020 · US
Method for producing a powder-metallurgical product
US-2020061703-A1 · Feb 27, 2020 · US
Composite roll for rolling and its production method
US-2019366402-A1 · Dec 5, 2019 · US
Composite roll for rolling
US-2019352753-A1 · Nov 21, 2019 · US
Density enhancement methods and compositions
US-2019308244-A1 · Oct 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22C38/56?
- CPC C22C38/56 is the Cooperative Patent Classification code for “with more than 1.7% by weight of carbon.”
- How many patents are filed under CPC C22C38/56 (with more than 1.7% by weight of carbon)?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC C22C38/56 growing?
- Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).