Block expandable polymeric compositions
US-2019309138-A1 · Oct 10, 2019 · US
Surface treatment
Surface treatment · 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 | C08J9/224 |
| Official title | Surface treatment |
| Display label | Surface treatment |
| Total patents | 159 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 14 |
| 2017 | 7 |
| 2018 | 20 |
| 2019 | 15 |
| 2020 | 17 |
| 2021 | 14 |
| 2022 | 11 |
| 2023 | 18 |
| 2024 | 17 |
| 2025 | 13 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Voided latex particles
US-2019292346-A1 · Sep 26, 2019 · US
Propylene-based resin foam particle and foam particle molded body
US-10385178-B2 · Aug 20, 2019 · US
Voided latex particles
US-10351689-B2 · Jul 16, 2019 · US
Prefoaming of poly(meth)acrylimide particles for subsequent foam moulding in closed tools
US-10343314-B2 · Jul 9, 2019 · US
Use of hollow polymeric microspheres in composite materials requiring flame resistance
US-10280340-B2 · May 7, 2019 · US
Thermoplastic polyurethane foamed particles and method for manufacturing thermoplastic polyurethane foamed particle molded article
US-2019100640-A1 · Apr 4, 2019 · US
Polypropylene resin foamed particles, in-mold foam molded body of polypropylene resin, and method for manufacturing same
US-10221292-B2 · Mar 5, 2019 · US
Particle-containing foam structure
US-10143595-B2 · Dec 4, 2018 · US
Thermoplastic resin foamed particles
US-10106664-B2 · Oct 23, 2018 · US
Method for preparing superabsorbent polymer
US-2018257059-A1 · Sep 13, 2018 · US
Large-diameter heat-expanding microspheres and method for producing same
US-2018258248-A1 · Sep 13, 2018 · US
Method for producing particle foams based on thermoplastic elastomers, by thermal bonding using microwaves
US-2018251621-A1 · Sep 6, 2018 · US
Superabsorbent polymer having high absorption rate under load and preparation method thereof
US-10065175-B2 · Sep 4, 2018 · US
Resin composite and method for producing resin composite
US-2018237607-A1 · Aug 23, 2018 · US
Polypropylene resin foamed particles, in-mold foam molded body of polypropylene resin, and method for manufacturing same
US-2018186959-A1 · Jul 5, 2018 · US
Superabsorbent polymer having high absorption rate under load and preparation method thereof
US-2018178193-A1 · Jun 28, 2018 · US
Lightweight particles and compositions containing them
US-2018179415-A1 · Jun 28, 2018 · US
Composite molded article, laminate, and method for producing composite molded article
US-2018162093-A1 · Jun 14, 2018 · US
Thermoplastic resin foamed particles
US-2018163010-A1 · Jun 14, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J9/224?
- CPC C08J9/224 is the Cooperative Patent Classification code for “Surface treatment.”
- How many patents are filed under CPC C08J9/224 (Surface treatment)?
- Our database includes 159 publications tagged with this CPC code.
- Is patent activity under CPC C08J9/224 growing?
- Publication counts under this code: 17 in 2024 vs 13 in 2025 (latest complete years).