Composition and process for pelletizing carbon-based materials for proppant and industrial applications
US-12502649-B2 · Dec 23, 2025 · US
Compounding ingredients (C04B33/36, C04B35/71 take precedence {; pigments for ceramics C09C1/0009})
Compounding ingredients (C04B33/36, C04B35/71 take precedence {; pigments for ceramics C09C1/0009}) · 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 | C04B33/13 |
| Official title | Compounding ingredients (C04B33/36, C04B35/71 take precedence {; pigments for ceramics C09C1/0009}) |
| Display label | Compounding ingredients (C04B33/36, C04B35/71 take precedence {; pigments for ceramics C09C1/0009}) |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 7 |
| 2023 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Porous body, atomizer and electronic atomization device
US-2025064122-A1 · Feb 27, 2025 · US
High-strength glass-ceramic-based lightweight aggregates and preparation method thereof
US-11780776-B2 · Oct 10, 2023 · US
High-strength glass-ceramic-based lightweight aggregates and preparation method thereof
US-2023234886-A1 · Jul 27, 2023 · US
High-strength geopolymer hollow microsphere, preparation method thereof and phase change energy storage microsphere
US-11685683-B2 · Jun 27, 2023 · US
Composition and process for pelletizing carbon-based materials for proppant and industrial applications
US-2023182098-A1 · Jun 15, 2023 · US
Composition and process for pelletizing carbon-based materials for proppant and industrial applications
US-11590469-B2 · Feb 28, 2023 · US
Sanitary ware
US-2022386597-A1 · Dec 8, 2022 · US
Building large porcelain panel
US-2022306538-A1 · Sep 29, 2022 · US
Cement-based calcined board-shaped construction material
US-2022185731-A1 · Jun 16, 2022 · US
Composition and process for pelletizing carbon-based materials for proppant and industrial applications
US-2022126246-A1 · Apr 28, 2022 · US
Catalytic converter
US-11291975-B2 · Apr 5, 2022 · US
Ceramic paste compositions for 3d printing
US-2022024823-A1 · Jan 27, 2022 · US
Sintering aid for glasses for machinable phyllosilicate based structures
US-11225433-B2 · Jan 18, 2022 · US
Composition and process for pelletizing carbon-based materials for proppant and industrial applications
US-11173462-B2 · Nov 16, 2021 · US
Composition and process for pelletizing carbon-based materials for proppant and industrial applications
US-2020306710-A1 · Oct 1, 2020 · US
Mineral treatment process
US-2020306729-A1 · Oct 1, 2020 · US
High-strength geopolymer hollow microsphere, preparation method thereof and phase change energy storage microsphere
US-2020002210-A1 · Jan 2, 2020 · US
Sanitary ware and method of manufacturing sanitary ware
US-2019389780-A1 · Dec 26, 2019 · US
Calcined kaolin as extender for coatings
US-2019225545-A1 · Jul 25, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B33/13?
- CPC C04B33/13 is the Cooperative Patent Classification code for “Compounding ingredients (C04B33/36, C04B35/71 take precedence {; pigments for ceramics C09C1/0009}).”
- How many patents are filed under CPC C04B33/13 (Compounding ingredients (C04B33/36, C04B35/71 take precedence {; pigments for ceramics C09C1/0009}))?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC C04B33/13 growing?
- Publication counts under this code: 5 in 2023 vs 2 in 2025 (latest complete years).