Electroconductive resin composition and molded product thereof
US-2017287584-A1 · Oct 5, 2017 · US
Expanded, porous or hollow particles
Expanded, porous or hollow particles · 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 | C08K7/22 |
| Official title | Expanded, porous or hollow particles |
| Display label | Expanded, porous or hollow particles |
| Total patents | 428 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 23 |
| 2017 | 35 |
| 2018 | 35 |
| 2019 | 47 |
| 2020 | 44 |
| 2021 | 43 |
| 2022 | 41 |
| 2023 | 45 |
| 2024 | 40 |
| 2025 | 36 |
| 2026 | 14 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Voided latex particles
US-2017240716-A1 · Aug 24, 2017 · US
Film with low heat conductivity, reduced density and low solar absorption
US-2017210874-A1 · Jul 27, 2017 · US
Composite core structure and method
US-2017190851-A1 · Jul 6, 2017 · US
D, L-cyclic peptide nanotube reinforcing agents
US-9682168-B2 · Jun 20, 2017 · US
Composite article having protective coating
US-9676965-B2 · Jun 13, 2017 · US
Stain resistant particles
US-2017160435-A1 · Jun 8, 2017 · US
Superabsorbent polymer
US-9669385-B2 · Jun 6, 2017 · US
Light weight structural materials
US-2017107353-A1 · Apr 20, 2017 · US
Superabsorbent polymer
US-2017043319-A1 · Feb 16, 2017 · US
Process for Making Acrylic Powder Coating Resin Systems
US-2017044377-A1 · Feb 16, 2017 · US
Superabsorbent polymer and preparation method therefor
US-9555393-B2 · Jan 31, 2017 · US
Carbon nanotube ultra-high molecular weight polyethylene composite, molded article including the same, and method of fabricating the molded article
US-9505911-B2 · Nov 29, 2016 · US
High-stability polyurethane polishing pad
US-9481070-B2 · Nov 1, 2016 · US
Adhesive, adhesive-backed member, and method for connecting between members
US-2016298008-A1 · Oct 13, 2016 · US
Porous polymer resin layer and method for manufacturing the same
US-2016280877-A1 · Sep 29, 2016 · US
Thermosetting resin composition and uses thereof
US-2016264745-A1 · Sep 15, 2016 · US
Print medium
US-9427999-B2 · Aug 30, 2016 · US
Super absorbent polymer and method of preparing the same
US-2016220983-A1 · Aug 4, 2016 · US
Superabsorbent polymer and preparation method therefor
US-2016214082-A1 · Jul 28, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08K7/22?
- CPC C08K7/22 is the Cooperative Patent Classification code for “Expanded, porous or hollow particles.”
- How many patents are filed under CPC C08K7/22 (Expanded, porous or hollow particles)?
- Our database includes 428 publications tagged with this CPC code.
- Is patent activity under CPC C08K7/22 growing?
- Publication counts under this code: 40 in 2024 vs 36 in 2025 (latest complete years).