Sliding material and gas compressor
US-12522777-B2 · Jan 13, 2026 · US
Additives being defined by their hardness
Additives being defined by their hardness · 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 | C08K2201/009 |
| Official title | Additives being defined by their hardness |
| Display label | Additives being defined by their hardness |
| Total patents | 60 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 8 |
| 2019 | 11 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 6 |
| 2024 | 7 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Reinforced polypropylene material and preparation method thereof
US-12428528-B2 · Sep 30, 2025 · US
Cured epoxy resin composition suitable for electronic device enclosure, articles, and methods
US-12404386-B2 · Sep 2, 2025 · US
Sliding material and gas compressor
US-2025179387-A1 · Jun 5, 2025 · US
Molded part of flame retardant elastomer composition for structural fire protection, and method of manufacturing corresponding molded parts
US-2025011589-A1 · Jan 9, 2025 · US
Composite particles for toner additives
US-2024417537-A1 · Dec 19, 2024 · US
Metal-oxide-coated thermoplastic microparticles having biodegradability
US-2024409709-A1 · Dec 12, 2024 · US
Composite particles for toner additives
US-12049551-B2 · Jul 30, 2024 · US
Resin composition and molded article
US-2024150552-A1 · May 9, 2024 · US
Method for manufacturing low-viscosity hardener
US-2024140925-A1 · May 2, 2024 · US
Ultra-quiet wheel hub assembly
US-2024018997-A1 · Jan 18, 2024 · US
Coating composition for surface repair of turbomachine components and compressor components
US-11867086-B2 · Jan 9, 2024 · US
Cured Epoxy Resin Composition Suitable for Electronic Device Enclosure, Articles, and Methods
US-2023383114-A1 · Nov 30, 2023 · US
Cured epoxy resin composition suitable for electronic device enclosure, articles, and methods
US-11773254-B2 · Oct 3, 2023 · US
Compositions containing thermally conductive fillers
US-2023212435-A1 · Jul 6, 2023 · US
Modeled object and method for producing same
US-2023173745-A1 · Jun 8, 2023 · US
Plateable Polymer Composition for Use at High Frequencies
US-2023167268-A1 · Jun 1, 2023 · US
Reinforced polypropylene material and preparation method thereof
US-2023159712-A1 · May 25, 2023 · US
Polyamide-imide film, preparation method thereof, cover window and display device comprising the same
US-2022243061-A1 · Aug 4, 2022 · US
Water-based surface treatment agent
US-2022017771-A1 · Jan 20, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08K2201/009?
- CPC C08K2201/009 is the Cooperative Patent Classification code for “Additives being defined by their hardness.”
- How many patents are filed under CPC C08K2201/009 (Additives being defined by their hardness)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC C08K2201/009 growing?
- Publication counts under this code: 7 in 2024 vs 4 in 2025 (latest complete years).