Air purifier
US-2025170515-A1 · May 29, 2025 · US
Combinations of devices covered by groups B01D46/00 and B01D47/00
Combinations of devices covered by groups B01D46/00 and B01D47/00 · 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 | B01D50/60 |
| Official title | Combinations of devices covered by groups B01D46/00 and B01D47/00 |
| Display label | Combinations of devices covered by groups B01D46/00 and B01D47/00 |
| Total patents | 59 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 5 |
| 2019 | 8 |
| 2020 | 3 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 5 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Oil-gas treatment system, oil-gas treatment method and mechanical apparatus
US-12257543-B2 · Mar 25, 2025 · US
Making ft products after stream reforming and hydrocarbon reforming
US-2025059036-A1 · Feb 20, 2025 · US
Method of generating clean syngas
US-12077435-B2 · Sep 3, 2024 · US
Dust collector
US-2024149206-A1 · May 9, 2024 · US
Method for clean and low-carbon in-situ disposal of waste incineration fly ash
US-2024149207-A1 · May 9, 2024 · US
Robot and robot system comprising same
US-11945097-B2 · Apr 2, 2024 · US
Portable breathing air filtering device and method
US-2024058738-A1 · Feb 22, 2024 · US
Method of producing a cooled syngas of improved quality
US-2023391618-A1 · Dec 7, 2023 · US
Purification device for purifying air and air purifier having same
US-11833466-B2 · Dec 5, 2023 · US
Air purifier
US-11794143-B2 · Oct 24, 2023 · US
Method of producing a cooled syngas of improved quality
US-11760631-B2 · Sep 19, 2023 · US
System and method for treating flue gas of boiler based on solar energy
US-11679358-B2 · Jun 20, 2023 · US
System and method for treating flue gas of boiler based on solar energy
US-2023095524-A1 · Mar 30, 2023 · US
Storage container wtih filtration system
US-2023073716-A1 · Mar 9, 2023 · US
Oil-gas treatment system, oil-gas treatment method and mechanical apparatus
US-2022250000-A1 · Aug 11, 2022 · US
Particulate matter collector
US-2022126234-A1 · Apr 28, 2022 · US
Method of Producing a Cooled Syngas of Improved Quality
US-2022098036-A1 · Mar 31, 2022 · US
Earth working machine having a dust extraction system and rotatable filter cartridges
US-11286628-B2 · Mar 29, 2022 · US
Active wet scrubbing filtration system
US-11260336-B2 · Mar 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D50/60?
- CPC B01D50/60 is the Cooperative Patent Classification code for “Combinations of devices covered by groups B01D46/00 and B01D47/00.”
- How many patents are filed under CPC B01D50/60 (Combinations of devices covered by groups B01D46/00 and B01D47/00)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC B01D50/60 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).