Air cleaner
US-2017348455-A1 · Dec 7, 2017 · US
Devices in general for catalytic purification of waste gases
Devices in general for catalytic purification of waste gases · 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 | B01D53/885 |
| Official title | {Devices in general for catalytic purification of waste gases} |
| Display label | Devices in general for catalytic purification of waste gases |
| Total patents | 418 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 23 |
| 2016 | 23 |
| 2017 | 19 |
| 2018 | 27 |
| 2019 | 31 |
| 2020 | 51 |
| 2021 | 51 |
| 2022 | 48 |
| 2023 | 58 |
| 2024 | 44 |
| 2025 | 30 |
| 2026 | 13 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photocatalytic module for automobile air conditioner and automobile air conditioner having the same
US-2017334267-A1 · Nov 23, 2017 · US
Photocatalyst composite particles and method for producing same
US-2017326531-A1 · Nov 16, 2017 · US
Compact air cleaner using uv led and photocatalytic filter
US-2017326264-A1 · Nov 16, 2017 · US
Process for removing oxidisable gaseous compounds from a gas mixture by means of a platinum-containing oxidation catalyst
US-2017304771-A1 · Oct 26, 2017 · US
Improved air purification system and method for removing formaldehyde
US-2017291164-A1 · Oct 12, 2017 · US
Air filtration using manganese oxide
US-9751077-B2 · Sep 5, 2017 · US
Photocatalyst material and method for fabricating the same
US-9724675-B2 · Aug 8, 2017 · US
Catalyzed particulate filter
US-2017198618-A1 · Jul 13, 2017 · US
Photocatalyst air purification system with ultraviolet light emitting diodes operated with a duty cycle
US-9662626-B2 · May 30, 2017 · US
Exhaust gas purification device
US-2017122176-A1 · May 4, 2017 · US
High Al-content steel sheet excellent in workability and method of production of same
US-9616411-B2 · Apr 11, 2017 · US
Gas Processing Apparatus
US-2017007958-A1 · Jan 12, 2017 · US
Method and device for performing pco reaction and air purifier comprising the device
US-2017001139-A1 · Jan 5, 2017 · US
Highly active thermally stable nanoporous gold catalyst
US-9522387-B2 · Dec 20, 2016 · US
Honeycomb structure
US-2016346776-A1 · Dec 1, 2016 · US
Catalytic filter module and catalytic filter system comprising same
US-9504958-B2 · Nov 29, 2016 · US
System for arranging an emission reducing catalyst in an exhaust duct of a gas turbine engine
US-2016341093-A1 · Nov 24, 2016 · US
Mounting mat for mounting monolith in a pollution control device
US-9494071-B2 · Nov 15, 2016 · US
Holding seal material, manufacturing method for holding seal material, exhaust gas purification apparatus and manufacturing method for exhaust gas purification apparatus
US-9486739-B2 · Nov 8, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D53/885?
- CPC B01D53/885 is the Cooperative Patent Classification code for “Devices in general for catalytic purification of waste gases.”
- How many patents are filed under CPC B01D53/885 (Devices in general for catalytic purification of waste gases)?
- Our database includes 418 publications tagged with this CPC code.
- Is patent activity under CPC B01D53/885 growing?
- Publication counts under this code: 44 in 2024 vs 30 in 2025 (latest complete years).