- All sections
- B - Performing operations; transporting
- 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: 457
10-year publication summary
|
33
|
38
|
39
|
27
|
34
|
45
|
42
|
29
|
24
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wacker Chemie AG | 2091 |
40 |
| Jiangsu Sixin Scientific-Technological Application Research Institute Co., Ltd. | 35 |
28 |
| Dow Global Technologies LLC | 10147 |
23 |
| San Nopco Ltd. | 34 |
15 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
14 |
| Kemira Oyj | 1167 |
14 |
| The Procter & Gamble Company | 22178 |
10 |
| Dow Corning Corporation | 1072 |
10 |
| Dow Silicones Corporation | 1664 |
10 |
| Evonik Operations GmbH | 3879 |
9 |
| BASF SE | 19740 |
8 |
| Solenis Technologies, L.P. | 306 |
8 |
| Afton Chemical Corporation | 468 |
7 |
| Nanjing Sixin Scientific-technological Application Research Institute Co. Ltd. | 9 |
7 |
| JXTG Nippon Oil & Energy Corporation | 325 |
7 |
| Dow Toray Co., Ltd. | 494 |
7 |
| Yangzhou Sixin New Material Technology Co., Ltd | 10 |
7 |
| Ecolab USA Inc. | 5190 |
6 |
| ENEOS Corporation | 611 |
6 |
| Nanjing Green Interface New Materials Research Institute Co., Ltd | 7 |
6 |
| Other owners | 215 |