Non-combustible aerosol delivery system
US-12593874-B2 · Apr 7, 2026 · US
Deodorising additives
Deodorising additives · 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 | B01D2239/045 |
| Official title | Deodorising additives |
| Display label | Deodorising additives |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 9 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tunable resonator-resonator coupling circuit and quantum computing apparatus comprising thereof
US-2025323644-A1 · Oct 16, 2025 · US
Clothes care apparatus
US-12234598-B2 · Feb 25, 2025 · US
Depth filter
US-12157078-B2 · Dec 3, 2024 · US
Gas adsorbent and gas adsorption sheet, filter medium, and air filter using same
US-2024382929-A1 · Nov 21, 2024 · US
Air Filter and Method for Manufacturing an Air Filter
US-2024307808-A1 · Sep 19, 2024 · US
Multilayer filter material
US-12048891-B2 · Jul 30, 2024 · US
Air-cleaning filter having dust collecting and deodorizing functions and preparation method therefor
US-2024226790-A9 · Jul 11, 2024 · US
Filter reinforcing material and filter medium for deodorizing filter comprising same
US-12023618-B2 · Jul 2, 2024 · US
Breathing half mask
US-2024198144-A1 · Jun 20, 2024 · US
Air-cleaning filter having dust collecting and deodorizing functions and preparation method therefor
US-2024131462-A1 · Apr 25, 2024 · US
Manhole odor treatment device
US-2024052622-A1 · Feb 15, 2024 · US
Method for manufacturing titanium dioxide nanofibers doped with noble metals
US-2023338931-A1 · Oct 26, 2023 · US
Nanofiber filter and method for manufacturing same
US-2023285887-A1 · Sep 14, 2023 · US
Non-combustible aerosol delivery system
US-2023218007-A1 · Jul 13, 2023 · US
Filter assembly and air cleaner having the same
US-11607638-B2 · Mar 21, 2023 · US
Air-permeable sheet filter material, methods for the production and use thereof
US-11607668-B2 · Mar 21, 2023 · US
Depth filter
US-2022096976-A1 · Mar 31, 2022 · US
Filter media for filtration of cooking fumes
US-11285421-B2 · Mar 29, 2022 · US
Air filter medium, filter pack, air filter unit, and method for producing the same
US-2022040614-A1 · Feb 10, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2239/045?
- CPC B01D2239/045 is the Cooperative Patent Classification code for “Deodorising additives.”
- How many patents are filed under CPC B01D2239/045 (Deodorising additives)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC B01D2239/045 growing?
- Publication counts under this code: 9 in 2024 vs 2 in 2025 (latest complete years).