Bio-enzyme degradable temporary plugging material and preparation method and application thereof
US-12110449-B1 · Oct 8, 2024 · US
Multiple coating or impregnating
Multiple coating or impregnating · 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 | C04B20/12 |
| Official title | Multiple coating or impregnating |
| Display label | Multiple coating or impregnating |
| Total patents | 67 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 8 |
| 2018 | 7 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lightweight core-shell aggregate and concrete
US-2024308910-A1 · Sep 19, 2024 · US
Foldable particles for lost circulation materials and related method
US-2024271027-A1 · Aug 15, 2024 · US
Thermal insulating composition based on fumed silica granulates, processes for its preparation and uses thereof
US-12030810-B2 · Jul 9, 2024 · US
Encapsulation of Silica Nanoparticle for Release
US-2024051872-A1 · Feb 15, 2024 · US
Encapsulation of silica nanoparticle for release
US-11795107-B2 · Oct 24, 2023 · US
Treatment of reinforcements to improve the interface transition zone in concretes
US-2023286860-A1 · Sep 14, 2023 · US
Marine concrete additive, preparation method therefor and use thereof
US-11702363-B2 · Jul 18, 2023 · US
Marine concrete additive, preparation method therefor and use thereof
US-2023039944-A1 · Feb 9, 2023 · US
Corrosion-induced shape memory fiber, preparation method and application thereof
US-11459756-B2 · Oct 4, 2022 · US
Carbonation of reactive magnesia cement (rmc)-based systems
US-2022153647-A1 · May 19, 2022 · US
Encapsulation of Silica Nanoparticle for Release
US-2022048819-A1 · Feb 17, 2022 · US
Oxidation-induced shape memory fiber and preparation method and application thereof
US-2022017425-A1 · Jan 20, 2022 · US
Device and method for reinforcing recycled aggregate based on in-situ C-S-H production
US-11187460-B2 · Nov 30, 2021 · US
Adhesion Promoter Coated Particles for Polymer Concrete Compositions
US-2021355030-A1 · Nov 18, 2021 · US
Microencapsulation of materials using cenospheres
US-11142909-B2 · Oct 12, 2021 · US
Thermal insulating composition based on fumed silica granulates, processes for its preparation and uses thereof
US-2021269359-A1 · Sep 2, 2021 · US
Device and method for reinforcing recycled aggregate based on in-situ c-s-h production
US-2021231371-A1 · Jul 29, 2021 · US
Bonding element, bonding matrix and composite material having the bonding element, and method of manufacturing thereof
US-10913684-B2 · Feb 9, 2021 · US
Composite materials, methods of production and uses thereof
US-10815154-B2 · Oct 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B20/12?
- CPC C04B20/12 is the Cooperative Patent Classification code for “Multiple coating or impregnating.”
- How many patents are filed under CPC C04B20/12 (Multiple coating or impregnating)?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC C04B20/12 growing?
- Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).