Refractory materials
US-2024300860-A1 · Sep 12, 2024 · US
Inorganic additives
Inorganic additives · 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 | C04B33/131 |
| Official title | {Inorganic additives} |
| Display label | Inorganic additives |
| Total patents | 54 |
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 | 1 |
| 2016 | 3 |
| 2017 | 11 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 1 |
| 2022 | 7 |
| 2023 | 3 |
| 2024 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for preparing ecological foamed ceramic from lepidolite filter mud whole waste
US-12006268-B2 · Jun 11, 2024 · US
Kaolin-based hemostatic gauze and preparation method thereof
US-2024100217-A1 · Mar 28, 2024 · US
Method for preparing ecological foamed ceramic from lepidolite filter mud whole waste
US-2024059619-A1 · Feb 22, 2024 · US
Aqueous gelcasting method for ceramic products
US-11851376-B2 · Dec 26, 2023 · 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
Treatment of calcium-containing bentonites for drilling fluids
US-11530346-B2 · Dec 20, 2022 · US
Building large porcelain panel
US-2022306538-A1 · Sep 29, 2022 · US
Composite nanoparticles for roofing granules, roofing shingles containing such granules, and process for producing same
US-11433366-B2 · Sep 6, 2022 · US
Dental porcelain paste superior in application property
US-11400029-B2 · Aug 2, 2022 · US
Aqueous gelcasting formulation for ceramic products
US-11384023-B2 · Jul 12, 2022 · US
Aqueous gelcasting formulation for ceramic products
US-2022098112-A1 · Mar 31, 2022 · US
Method of making waterproof magnesium oxychloride refractory brick by fly ash from municipal solid waste incineration
US-11279655-B2 · Mar 22, 2022 · US
Method for preparing low-density proppant by taking oil-based mud wastes as raw materials
US-2021040379-A1 · Feb 11, 2021 · US
Method of making waterproof magnesium oxychloride refractory brick by fly ash from municipal solid waste incineration
US-2020399182-A1 · Dec 24, 2020 · US
Aqueous gelcasting method for ceramic products
US-2020391407-A1 · Dec 17, 2020 · US
Process for making tiles
US-10858291-B2 · Dec 8, 2020 · US
Treatment of calcium-containing bentonites for drilling fluids
US-2020369939-A1 · Nov 26, 2020 · US
Dental porcelain paste superior in application property
US-2020330331-A1 · Oct 22, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B33/131?
- CPC C04B33/131 is the Cooperative Patent Classification code for “Inorganic additives.”
- How many patents are filed under CPC C04B33/131 (Inorganic additives)?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC C04B33/131 growing?
- Publication counts under this code: 3 in 2023 vs 4 in 2024 (latest complete years).