Porous refractory objects and methods of forming
US-12559429-B2 · Feb 24, 2026 · US
Physical characteristics
Physical characteristics · 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 | C04B2235/74 |
| Official title | Physical characteristics |
| Display label | Physical characteristics |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 7 |
| 2020 | 2 |
| 2021 | 9 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing ceramic ball material and method for manufacturing ceramic ball
US-2025326696-A1 · Oct 23, 2025 · US
Adaptive surface texturing for ceramic matrix composites
US-12371389-B2 · Jul 29, 2025 · US
Rare earth aluminate sintered compact and method for producing rare earth aluminate sintered compact
US-12371383-B2 · Jul 29, 2025 · US
Preparation of layered MXene via elemental halogen etching of MAX phase
US-12054428-B2 · Aug 6, 2024 · US
Systems and methods for making ceramic powders
US-12043581-B2 · Jul 23, 2024 · US
Magnetic sheet, coil module having magnetic sheet, and non-contact power supply device
US-12040112-B2 · Jul 16, 2024 · US
Rare earth aluminate sintered compact and method for producing rare earth aluminate sintered compact
US-2024228382-A9 · Jul 11, 2024 · US
Porous refractory objects and methods of forming
US-2024217880-A1 · Jul 4, 2024 · US
Rare earth aluminate sintered compact and method for producing rare earth aluminate sintered compact
US-2024132408-A1 · Apr 25, 2024 · US
Rare earth aluminate sintered compact and method for producing rare earth aluminate sintered compact
US-11897814-B2 · Feb 13, 2024 · US
Ceramic component
US-11878944-B2 · Jan 23, 2024 · US
Adaptive surface texturing for ceramic matrix composites
US-2023250033-A1 · Aug 10, 2023 · US
Tools and methods for their formation and use
US-2023242451-A1 · Aug 3, 2023 · US
Method for injecting a loaded suspension into a fibrous texture and method for manufacturing a part made of composite material
US-11655193-B2 · May 23, 2023 · US
Member for optical glass manufacturing apparatus
US-2023017610-A1 · Jan 19, 2023 · US
Rare earth aluminate sintered compact and method for producing rare earth aluminate sintered compact
US-2022041509-A1 · Feb 10, 2022 · US
Oxidation-induced shape memory fiber and preparation method and application thereof
US-2022017425-A1 · Jan 20, 2022 · US
Cordierite-based sintered body, method for producing the same, and composite substrate
US-11198648-B2 · Dec 14, 2021 · US
Method for injecting a loaded suspension into a fibrous texture and method for manufacturing a part made of composite material
US-2021362368-A1 · Nov 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2235/74?
- CPC C04B2235/74 is the Cooperative Patent Classification code for “Physical characteristics.”
- How many patents are filed under CPC C04B2235/74 (Physical characteristics)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC C04B2235/74 growing?
- Publication counts under this code: 8 in 2024 vs 3 in 2025 (latest complete years).