Apparatus and method for cleaning filter cartridges
US-11845028-B2 · Dec 19, 2023 · US
of rigid self-supporting filtering material
of rigid self-supporting filtering material · 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 | B01D41/04 |
| Official title | of rigid self-supporting filtering material |
| Display label | of rigid self-supporting filtering material |
| Total patents | 83 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 10 |
| 2018 | 5 |
| 2019 | 7 |
| 2020 | 11 |
| 2021 | 5 |
| 2022 | 11 |
| 2023 | 4 |
| 2024 | 13 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Garment care apparatus and control method therefor
US-2023158427-A1 · May 25, 2023 · US
Air treatment device
US-2023001346-A1 · Jan 5, 2023 · US
Systems and methods for cleaning particulate filters
US-11517846-B2 · Dec 6, 2022 · US
Hvac home air filter
US-2022370943-A1 · Nov 24, 2022 · US
HVAC Home Air Filter
US-2022297047-A1 · Sep 22, 2022 · US
Method for recycling scrapped polyvinylidene fluoride (pvdf) membrane produced in water treatment
US-2022297036-A1 · Sep 22, 2022 · US
Apparatus and method for cleaning filter cartridges
US-2022193590-A1 · Jun 23, 2022 · US
HVAC home air filter
US-11351495-B2 · Jun 7, 2022 · US
HVAC Home Air Filter
US-2022152542-A1 · May 19, 2022 · US
Air conditioner indoor unit and air conditioner
US-2022099334-A1 · Mar 31, 2022 · US
Hvac system air filter
US-2022047988-A1 · Feb 17, 2022 · US
HVAC home air filter
US-11241647-B2 · Feb 8, 2022 · US
Filter cleaning method and filter cleaning apparatus
US-11219930-B2 · Jan 11, 2022 · US
Easily shipped and installed filter and filter house
US-11207629-B2 · Dec 28, 2021 · US
Apparatus and Method for Cleaning Metal Filter
US-2021387124-A1 · Dec 16, 2021 · US
Peroxyformic acid compositions for membrane filtration cleaning
US-2021370357-A1 · Dec 2, 2021 · US
HVAC system air filter
US-11161074-B2 · Nov 2, 2021 · US
Peroxyformic acid compositions for membrane filtration cleaning
US-11117172-B2 · Sep 14, 2021 · US
Microwave irradiation device, exhaust purification apparatus, automobile and management system
US-10876458-B2 · Dec 29, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D41/04?
- CPC B01D41/04 is the Cooperative Patent Classification code for “of rigid self-supporting filtering material.”
- How many patents are filed under CPC B01D41/04 (of rigid self-supporting filtering material)?
- Our database includes 83 publications tagged with this CPC code.
- Is patent activity under CPC B01D41/04 growing?
- Publication counts under this code: 13 in 2024 vs 7 in 2025 (latest complete years).