- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 19/04 - Foam dispersion or prevention by addition of chemical substances
Patent holdings for IPC class B01D 19/04
Total number of patents in this class: 465
10-year publication summary
|
33
|
35
|
26
|
32
|
36
|
38
|
29
|
23
|
25
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wacker Chemie AG | 2113 |
37 |
| Jiangsu Sixin Scientific-Technological Application Research Institute Co., Ltd. | 43 |
35 |
| Dow Global Technologies LLC | 10437 |
23 |
| Kemira Oyj | 1216 |
19 |
| Shin-Etsu Chemical Co., Ltd. | 5695 |
15 |
| San Nopco Ltd. | 32 |
15 |
| Dow Silicones Corporation | 1959 |
11 |
| BASF SE | 21017 |
10 |
| Dow Corning Corporation | 958 |
10 |
| The Procter & Gamble Company | 22006 |
9 |
| Solenis Technologies, L.P. | 337 |
8 |
| Afton Chemical Corporation | 487 |
7 |
| DIC Corporation | 3818 |
7 |
| Nanjing Sixin Scientific-technological Application Research Institute Co. Ltd. | 9 |
7 |
| JXTG Nippon Oil & Energy Corporation | 323 |
7 |
| Dow Toray Co., Ltd. | 573 |
7 |
| Evonik Operations GmbH | 4174 |
7 |
| Yangzhou Sixin New Material Technology Co., Ltd | 10 |
7 |
| Ecolab USA Inc. | 5528 |
6 |
| ENEOS Corporation | 624 |
6 |
| Other owners | 212 |