Multilayer electronic component and method for manufacturing multilayer electronic component
US-2020411248-A1 · Dec 31, 2020 · US
Coating or impregnation
Coating or impregnation · 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 | C04B41/81 |
| Official title | Coating or impregnation |
| Display label | Coating or impregnation |
| Total patents | 110 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 11 |
| 2017 | 10 |
| 2018 | 14 |
| 2019 | 7 |
| 2020 | 14 |
| 2021 | 10 |
| 2022 | 5 |
| 2023 | 12 |
| 2024 | 8 |
| 2025 | 12 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Implantable medical devices
US-2020376174-A1 · Dec 3, 2020 · US
Alumina sintered body, abrasive grain, and grinding wheel
US-2020339849-A1 · Oct 29, 2020 · US
Skinning of ceramic honeycomb bodies
US-10807914-B2 · Oct 20, 2020 · US
Method for fabricating a ceramic material
US-2020181034-A1 · Jun 11, 2020 · US
Dispersants for colouration of ceramic tiles using ink jet inks
US-10675889-B2 · Jun 9, 2020 · US
Polycrystalline diamond
US-2020147759-A1 · May 14, 2020 · US
Method of manufacturing honeycomb structure
US-10633297-B2 · Apr 28, 2020 · US
Reducing impurities in ceramic matrix composites
US-10611697-B2 · Apr 7, 2020 · US
Cmc combustor shell with integral chutes
US-2020103112-A1 · Apr 2, 2020 · US
Method for fabricating a ceramic material
US-10562825-B2 · Feb 18, 2020 · US
Ceramic product with oriented particles and method for the production thereof
US-10538461-B2 · Jan 21, 2020 · US
Silica composite particle and method for producing the same
US-10526493-B2 · Jan 7, 2020 · US
Forming a surface layer of a ceramic matrix composite article
US-2019389782-A1 · Dec 26, 2019 · US
Composite Component Modifications
US-2019376389-A1 · Dec 12, 2019 · US
Method for producing silica composite particle
US-2019330474-A1 · Oct 31, 2019 · US
Method of manufacturing honeycomb structure
US-2019284105-A1 · Sep 19, 2019 · US
Forming a surface layer of a ceramic matrix composite article
US-10399911-B2 · Sep 3, 2019 · US
Cellular ceramic article and method for manufacturing the same
US-10329204-B2 · Jun 25, 2019 · US
Ceramic Material, Varistor and Methods of Preparing the Ceramic Material and the Varistor
US-2019103206-A1 · Apr 4, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B41/81?
- CPC C04B41/81 is the Cooperative Patent Classification code for “Coating or impregnation.”
- How many patents are filed under CPC C04B41/81 (Coating or impregnation)?
- Our database includes 110 publications tagged with this CPC code.
- Is patent activity under CPC C04B41/81 growing?
- Publication counts under this code: 8 in 2024 vs 12 in 2025 (latest complete years).