High temperature fiber and method of making
US-2024368041-A1 · Nov 7, 2024 · US
Boron nitride
Boron nitride · 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 | C04B35/62868 |
| Official title | {Boron nitride} |
| Display label | Boron nitride |
| Total patents | 383 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 28 |
| 2017 | 35 |
| 2018 | 36 |
| 2019 | 28 |
| 2020 | 57 |
| 2021 | 34 |
| 2022 | 26 |
| 2023 | 42 |
| 2024 | 47 |
| 2025 | 26 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of forming in-situ boron nitride for ceramic matrix composite environmental protection
US-2017341985-A1 · Nov 30, 2017 · US
Apparatus and methods for processing ceramic fiber
US-9815736-B2 · Nov 14, 2017 · US
Method of fabricating a turbine or compressor guide vane sector made of composite material for a turbine engine, and a turbine or a compressor incorporating such guide vane sectors
US-9784113-B2 · Oct 10, 2017 · US
Low-thickness thermostructural composite material part, and manufacture method
US-9784217-B2 · Oct 10, 2017 · US
Reactive fiber interface coatings for improved environmental stability
US-9764989-B2 · Sep 19, 2017 · US
Rapid ceramic matrix composite production method
US-9758436-B2 · Sep 12, 2017 · US
Method of forming in-situ boron nitride for ceramic matrix composite environmental protection
US-9732005-B2 · Aug 15, 2017 · US
Channel box
US-2017229195-A1 · Aug 10, 2017 · US
Ceramic matrix composite
US-9726025-B2 · Aug 8, 2017 · US
Method for producing high strength ceramic matrix composites
US-9708226-B2 · Jul 18, 2017 · US
Melt Infiltration Apparatus and Method for Molten Metal Control
US-2017166487-A1 · Jun 15, 2017 · US
Environmental barrier fiber coating
US-9676674-B2 · Jun 13, 2017 · US
Part coated with a surface coating and associated methods
US-2017159459-A1 · Jun 8, 2017 · US
Apparatus and methods for processing ceramic fiber
US-2017144925-A1 · May 25, 2017 · US
Melt infiltration wick attachment
US-9598321-B2 · Mar 21, 2017 · US
Sized yarn intended to undergo a textile operation
US-2017073854-A1 · Mar 16, 2017 · US
Rapid Ceramic Matrix Composite Production Method
US-2017044071-A1 · Feb 16, 2017 · US
Ceramic matrix composite structures with controlled microstructures fabricated using chemical vapor infiltration (cvi)
US-2017015595-A1 · Jan 19, 2017 · US
Rapid ceramic matrix composite production method
US-9523149-B2 · Dec 20, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B35/62868?
- CPC C04B35/62868 is the Cooperative Patent Classification code for “Boron nitride.”
- How many patents are filed under CPC C04B35/62868 (Boron nitride)?
- Our database includes 383 publications tagged with this CPC code.
- Is patent activity under CPC C04B35/62868 growing?
- Publication counts under this code: 47 in 2024 vs 26 in 2025 (latest complete years).