Filtering system including recyclable ceramic catalyst filter and method of managing filtering system
US-2022401866-A1 · Dec 22, 2022 · US
Means for power supply or devices using electrical power in filters or filter elements
Means for power supply or devices using electrical power in filters or filter elements · 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 | B01D46/4245 |
| Official title | {Means for power supply or devices using electrical power in filters or filter elements} |
| Display label | Means for power supply or devices using electrical power in filters or filter elements |
| Total patents | 110 |
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 |
| 2017 | 5 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 12 |
| 2021 | 21 |
| 2022 | 20 |
| 2023 | 13 |
| 2024 | 17 |
| 2025 | 12 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air-conditioning system
US-2022373197-A1 · Nov 24, 2022 · US
Particulate filter and methods for removing particulates from a particulate filter
US-11465091-B2 · Oct 11, 2022 · US
Particulate filter and methods for removing particulates from a particulate filter
US-11465092-B2 · Oct 11, 2022 · US
Air purifying system
US-11465085-B2 · Oct 11, 2022 · US
Air purifier
US-11402109-B2 · Aug 2, 2022 · US
Air purifier
US-2022212133-A1 · Jul 7, 2022 · US
Electrostatic air filter for electric vehicle motors
US-2022168680-A1 · Jun 2, 2022 · US
Automatic source-seeking indoor pollution purifying and removing device and method
US-11324847-B2 · May 10, 2022 · US
Personal ventilation device and method for delivering sanitized air to personal breathing space
US-2022118288-A1 · Apr 21, 2022 · US
Backpack dust collector
US-11278837-B2 · Mar 22, 2022 · US
Air purifier in a furniture article
US-2022062810-A1 · Mar 3, 2022 · US
Air cleaner and home appliance
US-11223162-B2 · Jan 11, 2022 · US
Apparatus and method for irradiating air in an air circulation system of a vehicle
US-2021394103-A1 · Dec 23, 2021 · US
Air purifier in a furniture article
US-2021387125-A1 · Dec 16, 2021 · US
Mobile Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19
US-2021339184-A1 · Nov 4, 2021 · US
Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19
US-2021339183-A1 · Nov 4, 2021 · US
Z-shield filtered air protective system
US-2021322799-A1 · Oct 21, 2021 · US
Reusable breathing mask using disposable recyclable flexible materials
US-2021322797-A1 · Oct 21, 2021 · US
Air cleaner
US-11116863-B2 · Sep 14, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D46/4245?
- CPC B01D46/4245 is the Cooperative Patent Classification code for “Means for power supply or devices using electrical power in filters or filter elements.”
- How many patents are filed under CPC B01D46/4245 (Means for power supply or devices using electrical power in filters or filter elements)?
- Our database includes 110 publications tagged with this CPC code.
- Is patent activity under CPC B01D46/4245 growing?
- Publication counts under this code: 17 in 2024 vs 12 in 2025 (latest complete years).