Tobacco blend
US-12185749-B2 · Jan 7, 2025 · US
of ion exchange materials
of ion exchange materials · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A24D3/12 |
| Official title | of ion exchange materials |
| Display label | of ion exchange materials |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 2 |
| 2019 | 7 |
| 2020 | 2 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tobacco blend
US-12108779-B2 · Oct 8, 2024 · US
Smoking article filter and method of manufacturing the same
US-11576428-B2 · Feb 14, 2023 · US
Additive releasing materials
US-11160305-B2 · Nov 2, 2021 · US
Fibrous filtration material for electronic smoking article
US-10681937-B2 · Jun 16, 2020 · US
Smoking article filter and method of manufacturing the same
US-2020107574-A1 · Apr 9, 2020 · US
Tobacco blend
US-2019357590-A1 · Nov 28, 2019 · US
Fibrous filtration material for electronic smoking article
US-2019320723-A1 · Oct 24, 2019 · US
Tobacco blend
US-2019289901-A1 · Sep 26, 2019 · US
Fibrous filtration material for electronic smoking article
US-10383369-B2 · Aug 20, 2019 · US
Additive carrying composition
US-10368576-B2 · Aug 6, 2019 · US
Smoking article filters
US-10264816-B2 · Apr 23, 2019 · US
Amphiphile-modified sorbents in smoking articles and filters
US-10188142-B2 · Jan 29, 2019 · US
Fibrous filtration material for electronic smoking article
US-2018352856-A1 · Dec 13, 2018 · US
Electronic vapor provision system
US-10070664-B2 · Sep 11, 2018 · US
Molecularly imprinted polymers selective for nitrosamines and methods of using the same
US-9844230-B2 · Dec 19, 2017 · US
Electronic vapour provision system
US-2017208857-A1 · Jul 27, 2017 · US
Additive carrying composition
US-2017156395-A1 · Jun 8, 2017 · US
Smoking article filters
US-2017042222-A1 · Feb 16, 2017 · US
Smoking article filters
US-2017035103-A1 · Feb 9, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A24D3/12?
- CPC A24D3/12 is the Cooperative Patent Classification code for “of ion exchange materials.”
- How many patents are filed under CPC A24D3/12 (of ion exchange materials)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC A24D3/12 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).