Damage resistant ceramic matrix composites
US-2025368579-A1 · Dec 4, 2025 · US
characterised by physical aspects, e.g. shape, size or porosity
characterised by physical aspects, e.g. shape, size or porosity · 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 | C04B38/065 |
| Official title | {characterised by physical aspects, e.g. shape, size or porosity} |
| Display label | characterised by physical aspects, e.g. shape, size or porosity |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 6 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ceramic matrix composite structures with controlled microstructures fabricated using chemical vapor infiltration (CVI)
US-12054432-B2 · Aug 6, 2024 · US
Sacrificial materials to improve chemical vapor infiltration of B4C loaded preforms
US-11906010-B2 · Feb 20, 2024 · US
Sacrificial materials to improve chemical vapor infiltration of b4c loaded preforms
US-2023375061-A1 · Nov 23, 2023 · US
Batch compositions comprising pre-reacted inorganic particles and methods of manufacture of green bodies therefrom
US-11591265-B2 · Feb 28, 2023 · US
Batch compositions comprising spheroidal pre-reacted inorganic particles and spheroidal pore-formers and methods of manufacture of honeycomb bodies therefrom
US-11447422-B2 · Sep 20, 2022 · US
Fugitive fiber commingling to provide loft in ceramic fiber tows
US-11434176-B2 · Sep 6, 2022 · US
Graphite sheet having excellent thermal conductivity and method for preparing the same
US-11434135-B2 · Sep 6, 2022 · US
Carbon fibers in ceramic cores for investment casting
US-11389861-B2 · Jul 19, 2022 · US
Ceramic matrix composite component including counterflow channels and method of producing
US-11326470-B2 · May 10, 2022 · US
Batch compositions comprising pre-reacted inorganic particles and methods of manufacture of green bodies therefrom
US-2021363064-A1 · Nov 25, 2021 · US
Ceramic matrix composite structures with controlled microstructures fabricated using chemical vapor infiltration (cvi)
US-2021238101-A1 · Aug 5, 2021 · US
Ceramic matrix composite structures with controlled microstructures fabricated using chemical vapor infiltration (CVI)
US-11072565-B2 · Jul 27, 2021 · US
Carbon fibers in ceramic cores for investment casting
US-2021197249-A1 · Jul 1, 2021 · US
Ceramic matrix composite component including counterflow channels and method of producing
US-2021189901-A1 · Jun 24, 2021 · US
Methods of forming ceramic matrix composites using sacrificial fibers and non-wetting coating
US-10995039-B1 · May 4, 2021 · US
Graphite sheet having excellent thermal conductivity and method for preparing the same
US-2020361776-A1 · Nov 19, 2020 · US
Graphite sheet having excellent thermal conductivity and method for preparing the same
US-10766773-B2 · Sep 8, 2020 · US
Batch compositions comprising spheroidal pre-reacted inorganic particles and spheroidal pore-formers and methods of manufacture of honeycomb bodies therefrom
US-2020255338-A1 · Aug 13, 2020 · US
Porous ceramic structure
US-10611696-B2 · Apr 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B38/065?
- CPC C04B38/065 is the Cooperative Patent Classification code for “characterised by physical aspects, e.g. shape, size or porosity.”
- How many patents are filed under CPC C04B38/065 (characterised by physical aspects, e.g. shape, size or porosity)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C04B38/065 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).