Material for neutralising and/or hardening liquids, a method for producing same, and uses
US-2024293793-A1 · Sep 5, 2024 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C09C1/021 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 450 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 61 |
| 2016 | 43 |
| 2017 | 69 |
| 2018 | 59 |
| 2019 | 47 |
| 2020 | 44 |
| 2021 | 24 |
| 2022 | 40 |
| 2023 | 28 |
| 2024 | 19 |
| 2025 | 13 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mineral composition, especially for use in paper fillers and paper or plastic coatings
US-2015376022-A1 · Dec 31, 2015 · US
Aqueous ink, ink cartridge and ink jet recording method
US-2015376427-A1 · Dec 31, 2015 · US
Use of glycerol as an agent to improve the self-dispersing properties of a mineral material to be added to an aqueous composition
US-2015376415-A1 · Dec 31, 2015 · US
Process for the preparation of surface treated mineral filler products and uses of same
US-9212283-B2 · Dec 15, 2015 · US
Process for the preparation of surface treated mineral filler products and uses of same
US-9212284-B2 · Dec 15, 2015 · US
Process for preparing self-dispersing pigments
US-2015337138-A1 · Nov 26, 2015 · US
High solids aqueous mineral and/or filler and/or pigment suspension in acidic ph environment
US-2015315366-A1 · Nov 5, 2015 · US
Silica containing self-dispersing pigments
US-2015307683-A1 · Oct 29, 2015 · US
Use of glycerol as an agent to improve the self-dispersing properties of a mineral material to be added to an aqueous composition
US-9163147-B2 · Oct 20, 2015 · US
Self-dispersing pigments
US-2015291822-A1 · Oct 15, 2015 · US
Composite polymer modifiers
US-2015284553-A1 · Oct 8, 2015 · US
Process of manufacture of particles with a natural calcium carbonate and ethylene acrylic acid salts base, suspensions and dry pigments obtained, their uses
US-2015284530-A1 · Oct 8, 2015 · US
Process for the production of precipitated calcium carbonate, precipitated calcium carbonate and uses thereof
US-9150738-B2 · Oct 6, 2015 · US
Laminates prepared from decor paper comprising self-dispersing pigments
US-2015275436-A1 · Oct 1, 2015 · US
Mineral composition, especially for use in paper fillers and paper or plastic coatings
US-9145484-B2 · Sep 29, 2015 · US
Process for the preparation of surface treated mineral filler products and uses of same
US-9139734-B2 · Sep 22, 2015 · US
Process for the preparation of surface treated mineral filler products and uses of same
US-9139735-B2 · Sep 22, 2015 · US
Process for making silica containing self-dispersing pigments
US-2015259537-A1 · Sep 17, 2015 · US
Decor paper comprising self-dispersing pigments
US-2015259855-A1 · Sep 17, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09C1/021?
- CPC C09C1/021 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C09C1/021 (Chemistry & Metallurgy)?
- Our database includes 450 publications tagged with this CPC code.
- Is patent activity under CPC C09C1/021 growing?
- Publication counts under this code: 19 in 2024 vs 13 in 2025 (latest complete years).