Methods of making proppant particles from slurry droplets and methods of use
US-10513654-B2 · Dec 24, 2019 · US
characterised by the pore size, pore shape or kind of porosity
characterised by the pore size, pore shape or kind of 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 | C04B38/0051 |
| Official title | {characterised by the pore size, pore shape or kind of porosity} |
| Display label | characterised by the pore size, pore shape or kind of porosity |
| Total patents | 129 |
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 | 6 |
| 2016 | 14 |
| 2017 | 9 |
| 2018 | 15 |
| 2019 | 17 |
| 2020 | 18 |
| 2021 | 16 |
| 2022 | 12 |
| 2023 | 9 |
| 2024 | 8 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High-purity calcium carbonate sintered body and production method thereof, and high-purity calcium carbonate porous sintered body and production method thereof
US-2019375687-A1 · Dec 12, 2019 · US
Lithium composite oxide sintered body plate
US-2019355970-A1 · Nov 21, 2019 · US
Process for producing a catalyst and catalyst article
US-10441918-B2 · Oct 15, 2019 · US
A turbine engine part coated in a thermal barrier, and a method of obtaining it
US-2019256983-A1 · Aug 22, 2019 · US
Armour plate
US-2019234712-A1 · Aug 1, 2019 · US
Tools having a structural metal-matrix composite portion
US-2019234151-A1 · Aug 1, 2019 · US
Catalyst precursor, method of preparation and use thereof
US-10351779-B2 · Jul 16, 2019 · US
Alumina sintered body and base substrate for optical device
US-10336625-B2 · Jul 2, 2019 · US
Honeycomb structure
US-10315193-B2 · Jun 11, 2019 · US
Eco-friendly method for manufacturing of porous silicon carbide structure
US-2019144287-A1 · May 16, 2019 · US
Porous ceramic body to reduce emissions
US-2019134614-A1 · May 9, 2019 · US
Porous ceramic body to reduce emissions
US-10207258-B2 · Feb 19, 2019 · US
Ceramic mixture paste, porous body, electrostatic chuck, and substrate fixing device
US-2019035667-A1 · Jan 31, 2019 · US
Multi-phasic ceramic composite
US-10189746-B2 · Jan 29, 2019 · US
Silica molded bodies having low thermal conductivity
US-2019016634-A1 · Jan 17, 2019 · US
Ceramic material having a positive slowly release effect, method for manufacturing the same, and system comprising the same
US-2018368416-A1 · Dec 27, 2018 · US
Highly porous ceramic material and method of using and forming same
US-10138169-B2 · Nov 27, 2018 · US
Porous carbon material, composite material reinforced with carbon material, porous carbon material precursor, porous carbon material precursor production method, and porous carbon material production method
US-10131770-B2 · Nov 20, 2018 · US
Assembled filters for the filtration of liquids
US-2018304201-A1 · Oct 25, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B38/0051?
- CPC C04B38/0051 is the Cooperative Patent Classification code for “characterised by the pore size, pore shape or kind of porosity.”
- How many patents are filed under CPC C04B38/0051 (characterised by the pore size, pore shape or kind of porosity)?
- Our database includes 129 publications tagged with this CPC code.
- Is patent activity under CPC C04B38/0051 growing?
- Publication counts under this code: 8 in 2024 vs 5 in 2025 (latest complete years).