Plasma treatment method, method of producing plasma-treated hexagonal boron nitride powder, and plasma treatment device
US-2024182301-A1 · Jun 6, 2024 · US
After-treatment, e.g. grinding, purification (transformation of hexagonal into cubic or wurtzitic boron nitride C04B35/5831)
After-treatment, e.g. grinding, purification (transformation of hexagonal into cubic or wurtzitic boron nitride C04B35/5831) · 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 | C01B21/0648 |
| Official title | {After-treatment, e.g. grinding, purification (transformation of hexagonal into cubic or wurtzitic boron nitride C04B35/5831)} |
| Display label | After-treatment, e.g. grinding, purification (transformation of hexagonal into cubic or wurtzitic boron nitride C04B35/5831) |
| Total patents | 289 |
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 | 21 |
| 2017 | 22 |
| 2018 | 21 |
| 2019 | 33 |
| 2020 | 36 |
| 2021 | 32 |
| 2022 | 32 |
| 2023 | 23 |
| 2024 | 28 |
| 2025 | 24 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Silicon-based polymer-derived ceramic composites comprising H-BN nanosheets
US-10093584-B2 · Oct 9, 2018 · US
Aerogels
US-2018251377-A1 · Sep 6, 2018 · US
Process for manufacturing boron nitride agglomerates
US-2017362440-A1 · Dec 21, 2017 · US
Agglomerated boron nitride particles, composition containing said particles, and three-dimensional integrated circuit having layer comprising said composition
US-2017335160-A1 · Nov 23, 2017 · US
Agglomerated boron nitride particles, composition containing said particles, and three-dimensional integrated circuit having layer comprising said composition
US-9822294-B2 · Nov 21, 2017 · US
Hexagonal boron nitride nanosheet/ceramic nanocomposite powder and producing method of the same, and hexagonal boron nitride nanosheet/ceramic nanocomposite materials and producing method of the same
US-9745499-B2 · Aug 29, 2017 · US
Heterogeneous metal-free catalyst
US-9725395-B2 · Aug 8, 2017 · US
Process for producing fine, morphologically optimized particles using jet mill, jet mill for use in such a process and particles produced
US-9695047-B2 · Jul 4, 2017 · US
Tubular Nanostructure Targeted To Cell Membrane
US-2017173177-A1 · Jun 22, 2017 · US
Silicon-based polymer-derived ceramic composites comprising h-bn nanosheets
US-2017144935-A1 · May 25, 2017 · US
Boron-nitride powder and resin composition containing same
US-9656868-B2 · May 23, 2017 · US
Inorganic filler, epoxy resin composition including the same and light emitting element including insulating layer using the composition
US-2017130033-A1 · May 11, 2017 · US
Cleaning of nanostructures
US-9616470-B1 · Apr 11, 2017 · US
Tubular nanostructure targeted to cell membrane
US-9617157-B2 · Apr 11, 2017 · US
Sorting Two-Dimensional Nanomaterials by Thickness
US-2017096344-A1 · Apr 6, 2017 · US
Layered substance-containing liquid and method for producing same
US-2017095784-A1 · Apr 6, 2017 · US
Direct conversion of carbon into diamond and structures for a variety of applications
US-2017037531-A1 · Feb 9, 2017 · US
Conversion of boron nitride into n-type and p-type doped cubic boron nitride and structures
US-2017037540-A1 · Feb 9, 2017 · US
Synthesis and processing of novel phase of boron nitride (q-bn)
US-2017037533-A1 · Feb 9, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B21/0648?
- CPC C01B21/0648 is the Cooperative Patent Classification code for “After-treatment, e.g. grinding, purification (transformation of hexagonal into cubic or wurtzitic boron nitride C04B35/5831).”
- How many patents are filed under CPC C01B21/0648 (After-treatment, e.g. grinding, purification (transformation of hexagonal into cubic or wurtzitic boron nitride C04B35/5831))?
- Our database includes 289 publications tagged with this CPC code.
- Is patent activity under CPC C01B21/0648 growing?
- Publication counts under this code: 28 in 2024 vs 24 in 2025 (latest complete years).