Photocatalytic filtration system and method of reducing hazardous gases
US-10512879-B2 · Dec 24, 2019 · US
UV light
UV light · 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 | B01D2259/804 |
| Official title | UV light |
| Display label | UV light |
| Total patents | 290 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 16 |
| 2017 | 12 |
| 2018 | 9 |
| 2019 | 21 |
| 2020 | 28 |
| 2021 | 41 |
| 2022 | 40 |
| 2023 | 41 |
| 2024 | 30 |
| 2025 | 24 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photocatalyst
US-10434505-B1 · Oct 8, 2019 · US
Ozone abatement system for semiconductor manufacturing system
US-10369510-B2 · Aug 6, 2019 · US
Pollution control using ozone
US-2019126198-A1 · May 2, 2019 · US
Method for Photocatalytic Ozonation Reaction, Catalyst for photocatalytic ozonation and Reactor Containing the Same
US-2019112211-A1 · Apr 18, 2019 · US
Apparatus for air purification and freshness maintenance, and method for controlling same
US-2018272024-A1 · Sep 27, 2018 · US
Sterilization structure of water outlet and water treatment device containing same
US-2018244542-A1 · Aug 30, 2018 · US
Visible light-activated photocatalytic coating composition and air purification filter
US-2018236438-A1 · Aug 23, 2018 · US
Electronic apparatus having photocatalytic filter
US-2018207311-A1 · Jul 26, 2018 · US
Compact system with high homogeneity of the radiation field
US-9999696-B2 · Jun 19, 2018 · US
Regenerative air purification system and method
US-RE46804-E · Apr 24, 2018 · US
Photocatalyst filter and air conditioner including the same
US-2018104374-A1 · Apr 19, 2018 · US
Ultraviolet and hydrogen peroxide or ozone or ozone and hydrogen peroxide treatment to simultaneously control nitrosamine, nitramine, amine and aldehyde emissions from amine-based carbon capture
US-9937466-B2 · Apr 10, 2018 · US
Photocatalytic filter for degrading mixed gas and manufacturing method thereof
US-2018029017-A1 · Feb 1, 2018 · US
Air cleaner
US-2017348455-A1 · Dec 7, 2017 · US
Photocatalytic module for automobile air conditioner and automobile air conditioner having the same
US-2017334267-A1 · Nov 23, 2017 · US
Photocatalytic filtration system and method of reducing hazardous gases
US-2017333825-A1 · Nov 23, 2017 · US
Compact air cleaner using uv led and photocatalytic filter
US-2017326264-A1 · Nov 16, 2017 · US
Refrigerator and method of manufacturing metal photocatalyst filter of the refrigerator
US-9803910-B2 · Oct 31, 2017 · US
Photocatalyic coating
US-2017232423-A1 · Aug 17, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2259/804?
- CPC B01D2259/804 is the Cooperative Patent Classification code for “UV light.”
- How many patents are filed under CPC B01D2259/804 (UV light)?
- Our database includes 290 publications tagged with this CPC code.
- Is patent activity under CPC B01D2259/804 growing?
- Publication counts under this code: 30 in 2024 vs 24 in 2025 (latest complete years).