Vacuum cleaner
US-2017347851-A1 · Dec 7, 2017 · US
Dust collectors
Dust collectors · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B04C5/185 |
| Official title | Dust collectors |
| Display label | Dust collectors |
| Total patents | 305 |
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 | 21 |
| 2016 | 21 |
| 2017 | 23 |
| 2018 | 34 |
| 2019 | 35 |
| 2020 | 52 |
| 2021 | 35 |
| 2022 | 29 |
| 2023 | 22 |
| 2024 | 22 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cyclone vacuum cleaner and cyclone separation device
US-9820622-B2 · Nov 21, 2017 · US
Cyclone assembly for surface cleaning apparatus and a surface cleaning apparatus having same
US-2017303757-A1 · Oct 26, 2017 · US
Cyclone assembly for surface cleaning apparatus and a surface cleaning apparatus having same
US-2017303758-A1 · Oct 26, 2017 · US
Dust collector and vacuum cleaner having the same
US-2017296016-A1 · Oct 19, 2017 · US
Dust collector and vacuum cleaner having the same
US-2017296017-A1 · Oct 19, 2017 · US
Vacuum cleaner
US-9788697-B2 · Oct 17, 2017 · US
Vacuum cleaner
US-9775482-B2 · Oct 3, 2017 · US
Fitment
US-D796633-S · Sep 5, 2017 · US
Pool cleaner power coupling
US-2017247896-A1 · Aug 31, 2017 · US
Filter assembly
US-D793522-S · Aug 1, 2017 · US
Cyclonic separation apparatus
US-2017209875-A1 · Jul 27, 2017 · US
Filter
US-D792942-S · Jul 25, 2017 · US
Vacuum cleaner
US-9681786-B2 · Jun 20, 2017 · US
Separator device
US-2017152977-A1 · Jun 1, 2017 · US
Cyclone separation device and electric vacuum cleaner with same
US-9661969-B2 · May 30, 2017 · US
Vacuum cleaner
US-2017079491-A1 · Mar 23, 2017 · US
Cyclonic vacuum cleaner with improved collection chamber
US-9538891-B2 · Jan 10, 2017 · US
Particle Separator
US-2016368788-A9 · Dec 22, 2016 · US
Cyclonic vacuum cleaner with improved collection chamber
US-2016367098-A1 · Dec 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B04C5/185?
- CPC B04C5/185 is the Cooperative Patent Classification code for “Dust collectors.”
- How many patents are filed under CPC B04C5/185 (Dust collectors)?
- Our database includes 305 publications tagged with this CPC code.
- Is patent activity under CPC B04C5/185 growing?
- Publication counts under this code: 22 in 2024 vs 8 in 2025 (latest complete years).