- All sections
- A - Human necessities
- A24D - Cigarscigarettestobacco smoke filtersmouthpieces for cigars or cigarettesmanufacture of tobacco smoke filters or mouthpieces
- A24D 3/16 - Use of materials for tobacco smoke filters of inorganic materials
Patent holdings for IPC class A24D 3/16
Total number of patents in this class: 255
10-year publication summary
|
19
|
18
|
12
|
20
|
15
|
25
|
14
|
20
|
14
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Japan Tobacco Inc. | 3549 |
33 |
| British American Tobacco (Investments) Limited | 1001 |
27 |
| KT & G Corporation | 3141 |
23 |
| Philip Morris Products S.A. | 8223 |
21 |
| Philip Morris USA Inc. | 652 |
20 |
| Nicoventures Trading Limited | 4742 |
11 |
| JT International S.A. | 2883 |
8 |
| Massachusetts Institute of Technology | 10273 |
6 |
| R. J. Reynolds Tobacco Company | 256 |
6 |
| Compañía Industrial de Tabacos Monte-Paz S.A. | 38 |
5 |
| delfortgroup AG | 156 |
5 |
| Daicel Chemical Industries, Ltd. | 179 |
4 |
| R.J. Reynolds Tobacco Company | 503 |
4 |
| China Tobacco Hunan Industrial Co., Ltd. | 257 |
3 |
| China Tobacco Yunnan Industrial Co., Ltd. | 278 |
3 |
| Daicel Corporation | 2542 |
3 |
| Rhodia Operations | 1490 |
3 |
| Universidad de La Republica | 38 |
3 |
| Acetate International LLC | 64 |
3 |
| Essentra Filter Products Development Co. Pte. Ltd. | 49 |
3 |
| Other owners | 61 |