Method for manufacturing a refractory part made of composite material
US-2017341263-A1 · Nov 30, 2017 · US
Phosphates or phosphites, e.g. orthophosphate or hypophosphite
Phosphates or phosphites, e.g. orthophosphate or hypophosphite · 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 | C04B2235/447 |
| Official title | Phosphates or phosphites, e.g. orthophosphate or hypophosphite |
| Display label | Phosphates or phosphites, e.g. orthophosphate or hypophosphite |
| Total patents | 247 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 19 |
| 2017 | 25 |
| 2018 | 22 |
| 2019 | 21 |
| 2020 | 22 |
| 2021 | 23 |
| 2022 | 24 |
| 2023 | 30 |
| 2024 | 21 |
| 2025 | 18 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing part made of composite material
US-2017334791-A1 · Nov 23, 2017 · US
Ultralong hydroxyapatite nanowire/microwire, method of preparing same, hydroxyapatite paper comprising same and preparation method thereof
US-9822488-B2 · Nov 21, 2017 · US
Solid state catholytes and electrolytes for energy storage devices
US-9819024-B2 · Nov 14, 2017 · US
Magnetic beta-tricalcium phosphate spherical particles and method for producing the same
US-2017323709-A1 · Nov 9, 2017 · US
Composition for Providing A Batch Refractory Ceramic Product and Method
US-2017313624-A1 · Nov 2, 2017 · US
Method to improve the thermal properties of a resistance element embedded in an alumina deposit on a surface of a substrate and application of said method
US-9803499-B2 · Oct 31, 2017 · US
Method of treating ceramic fibers by phosphating
US-9802870-B2 · Oct 31, 2017 · US
Abrasive articles and earth-boring tools
US-2017292331-A1 · Oct 12, 2017 · US
Cation-enhanced chemical stability of ion-conducting zirconium-based ceramics
US-2017275208-A1 · Sep 28, 2017 · US
Methods of forming abrasive articles
US-9744646-B2 · Aug 29, 2017 · US
Refractory ceramic batch as well as a refractory ceramic product
US-2017226016-A1 · Aug 10, 2017 · US
Modified ceramics with improved bioactivity and their use for bone substitute
US-2017165398-A1 · Jun 15, 2017 · US
Setter plates for solid electrolyte fabrication and methods of using the same to prepare dense solid electrolytes
US-2017153060-A1 · Jun 1, 2017 · US
Solid state catholytes and electrolytes for energy storage devices
US-2017149065-A1 · May 25, 2017 · US
Fire-resistant ceramic mix and fire resistant ceramic product
US-9656919-B2 · May 23, 2017 · US
Solid state catholytes and electrolytes for energy storage devices
US-9634354-B2 · Apr 25, 2017 · US
Piezoceramic multi-layer element
US-9598319-B2 · Mar 21, 2017 · US
Ceramic matrix composite materials with rare earth phosphate fibers and methods for preparing the same
US-2017067345-A1 · Mar 9, 2017 · US
Positive electrode active material for non-aqueous electrolyte secondary battery and method of producing the same
US-2017062808-A1 · Mar 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2235/447?
- CPC C04B2235/447 is the Cooperative Patent Classification code for “Phosphates or phosphites, e.g. orthophosphate or hypophosphite.”
- How many patents are filed under CPC C04B2235/447 (Phosphates or phosphites, e.g. orthophosphate or hypophosphite)?
- Our database includes 247 publications tagged with this CPC code.
- Is patent activity under CPC C04B2235/447 growing?
- Publication counts under this code: 21 in 2024 vs 18 in 2025 (latest complete years).