Ceramic base material, ceramic support, and separation membrane complex
US-2024399316-A1 · Dec 5, 2024 · US
Mullite {3Al2O3-2SiO2}
Mullite {3Al2O3-2SiO2} · 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 | C04B35/185 |
| Official title | Mullite {3Al2O3-2SiO2} |
| Display label | Mullite {3Al2O3-2SiO2} |
| Total patents | 403 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 47 |
| 2016 | 31 |
| 2017 | 31 |
| 2018 | 30 |
| 2019 | 44 |
| 2020 | 39 |
| 2021 | 42 |
| 2022 | 40 |
| 2023 | 30 |
| 2024 | 35 |
| 2025 | 31 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High temperature fiber and method of making
US-2024368041-A1 · Nov 7, 2024 · US
Part made from oxide/oxide composite material for 3-d reinforcing and method for manufacture of same
US-2016362822-A1 · Dec 15, 2016 · US
Monolithic ceramic rods to enable cooling holes in cmc
US-2016348515-A1 · Dec 1, 2016 · US
Method of making glass sheets with gas pretreatment of refractory
US-2016340222-A1 · Nov 24, 2016 · US
Closed pore ceramic composite article
US-9447503-B2 · Sep 20, 2016 · US
Honeycomb structure
US-9416057-B2 · Aug 16, 2016 · US
Ceramic particles with controlled pore and/or microsphere placement and/or size and method of making same
US-9410078-B2 · Aug 9, 2016 · US
Hydraulic fracturing proppant containing inorganic fibers
US-9382468-B2 · Jul 5, 2016 · US
Product having a high alumina content
US-2016185666-A1 · Jun 30, 2016 · US
Method for making ceramic matrix composite articles with progressive melt infiltration
US-2016175960-A1 · Jun 23, 2016 · US
Method for producing light ceramic materials
US-2016176765-A1 · Jun 23, 2016 · US
Porous material, honeycomb structure, and production method for porous material
US-9358529-B2 · Jun 7, 2016 · US
Pressure Sensor System
US-2015377734-A1 · Dec 31, 2015 · US
Ceramic processing firing
US-9221192-B2 · Dec 29, 2015 · US
Methods of making a composite sheet and composite component and a composite
US-9221218-B2 · Dec 29, 2015 · US
Pressure casting slip and refractory ceramic produced therefrom for gas turbine units
US-9221718-B2 · Dec 29, 2015 · US
Light Weight Proppant With Improved Strength And Methods Of Making Same
US-2015368548-A1 · Dec 24, 2015 · US
Process for bonding arrays of ceramic filters
US-9206087-B2 · Dec 8, 2015 · US
Methods for manufacturing particulate filters
US-9205362-B2 · Dec 8, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B35/185?
- CPC C04B35/185 is the Cooperative Patent Classification code for “Mullite {3Al2O3-2SiO2}.”
- How many patents are filed under CPC C04B35/185 (Mullite {3Al2O3-2SiO2})?
- Our database includes 403 publications tagged with this CPC code.
- Is patent activity under CPC C04B35/185 growing?
- Publication counts under this code: 35 in 2024 vs 31 in 2025 (latest complete years).