Ceramic matrix composites having monomodal pore size distribution and low fiber volume fraction
US-2018093926-A1 · Apr 5, 2018 · US
Boron carbides
Boron carbides · 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 | C04B2235/3821 |
| Official title | Boron carbides |
| Display label | Boron carbides |
| Total patents | 281 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 18 |
| 2017 | 25 |
| 2018 | 16 |
| 2019 | 25 |
| 2020 | 31 |
| 2021 | 25 |
| 2022 | 25 |
| 2023 | 35 |
| 2024 | 31 |
| 2025 | 26 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for pyrolyzing preceramic polymer material using electromagnetic radiation
US-2017369380-A1 · Dec 28, 2017 · US
Ceramic matrix composites having monomodal pore size distribution and low fiber volume fraction
US-9850174-B2 · Dec 26, 2017 · US
Multi-functional BN—BN composite
US-9845269-B2 · Dec 19, 2017 · US
Method of forming in-situ boron nitride for ceramic matrix composite environmental protection
US-2017341985-A1 · Nov 30, 2017 · US
Refractory material and casting nozzle
US-9821371-B2 · Nov 21, 2017 · US
Refractory for casting, nozzle for casting and sliding nozzle plate using same
US-9815741-B2 · Nov 14, 2017 · US
Multi-phasic ceramic composite
US-2017320782-A1 · Nov 9, 2017 · US
Ceramic matrix composites having monomodal pore size distribution and low fiber volume fraction
US-2017275210-A1 · Sep 28, 2017 · US
Armor component
US-9772167-B2 · Sep 26, 2017 · US
Composite ceramic composition and method of forming same
US-2017260102-A1 · Sep 14, 2017 · US
Method for pyrolyzing preceramic polymer material using electromagnetic radiation
US-9751808-B2 · Sep 5, 2017 · US
Method of forming in-situ boron nitride for ceramic matrix composite environmental protection
US-9732005-B2 · Aug 15, 2017 · US
Self-lubricating flexible carbon composite seal
US-9726300-B2 · Aug 8, 2017 · US
Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements
US-9719307-B1 · Aug 1, 2017 · US
Reactive melt infiltrated-ceramic matrix composite
US-9701578-B2 · Jul 11, 2017 · US
Formation of boron carbide-boron nitride carbon compositions
US-2017152191-A1 · Jun 1, 2017 · US
Polycrystalline diamond compact including a pre-sintered polycrystalline diamond table including a nonmetallic catalyst that limits infiltration of a metallic-catalyst infiltrant therein and applications therefor
US-9657529-B1 · May 23, 2017 · US
Degradable powder blend
US-2017113275-A1 · Apr 27, 2017 · US
Composite brake disks with an integrated heat sink, methods for manufacturing the same, and methods for producing encapsulated heat sink material
US-2017102043-A1 · Apr 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2235/3821?
- CPC C04B2235/3821 is the Cooperative Patent Classification code for “Boron carbides.”
- How many patents are filed under CPC C04B2235/3821 (Boron carbides)?
- Our database includes 281 publications tagged with this CPC code.
- Is patent activity under CPC C04B2235/3821 growing?
- Publication counts under this code: 31 in 2024 vs 26 in 2025 (latest complete years).