Hexagonal boron nitride powder and method for producing the same
US-12428297-B2 · Sep 30, 2025 · US
Preparation by carboreductive nitridation
Preparation by carboreductive nitridation · 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 | C01B21/0645 |
| Official title | {Preparation by carboreductive nitridation} |
| Display label | Preparation by carboreductive nitridation |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 6 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hexagonal boron nitride powder and method for producing the same
US-2025296887-A1 · Sep 25, 2025 · US
Boron nitride powder, method for producing same, and heat-dissipating sheet
US-2025270435-A1 · Aug 28, 2025 · US
Boron nitride powder, resin composition, and method for producing boron nitride powder
US-2025215192-A1 · Jul 3, 2025 · US
Hexagonal boron nitride powder and method for producing the same
US-2025059039-A1 · Feb 20, 2025 · US
Boron nitride powder, method for producing same, and heat-dissipating member produced using same
US-12187608-B2 · Jan 7, 2025 · US
Hexagonal boron nitride powder and method for producing sintered body
US-2023406777-A1 · Dec 21, 2023 · US
Boron nitride particles, resin composition, and method for producing resin composition
US-2023294991-A1 · Sep 21, 2023 · US
Surface-treated aggregated boron nitride powder, aggregated boron nitride powder, and thermally conductive resin composition
US-11732173-B2 · Aug 22, 2023 · US
Boron nitride sintered body, method for manufacturing same, laminate, and method for manufacturing same
US-2023146575-A1 · May 11, 2023 · US
Hexagonal boron nitride powder, method for producing same, resin composition and resin sheet
US-11577957-B2 · Feb 14, 2023 · US
Hexagonal boron nitride powder and method for producing the same
US-2023014886-A1 · Jan 19, 2023 · US
Hexagonal boron nitride powder
US-2022402759-A1 · Dec 22, 2022 · US
Hexagonal boron nitride powder and production process therefor
US-11407638-B2 · Aug 9, 2022 · US
Boron nitride powder, method for producing same, composite material, and heat dissipation member
US-2022204830-A1 · Jun 30, 2022 · US
Boron nitride aggregated particles, thermal conductive resin composition, and heat dissipation member
US-2022154059-A1 · May 19, 2022 · US
Surface-treated aggregated boron nitride powder, aggregated boron nitride powder, and thermally conductive resin composition
US-2022154060-A1 · May 19, 2022 · US
Boron nitride aggregated grain
US-11268004-B2 · Mar 8, 2022 · US
Method for preparing expanded hexagonal boron nitride by templating
US-2021284893-A1 · Sep 16, 2021 · US
Hexagonal boron nitride powder and method for producing hexagonal boron nitride powder
US-2021163288-A1 · Jun 3, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B21/0645?
- CPC C01B21/0645 is the Cooperative Patent Classification code for “Preparation by carboreductive nitridation.”
- How many patents are filed under CPC C01B21/0645 (Preparation by carboreductive nitridation)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC C01B21/0645 growing?
- Publication counts under this code: 6 in 2023 vs 6 in 2025 (latest complete years).