- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 19/02 - Foam dispersion or prevention
Patent holdings for IPC class B01D 19/02
Total number of patents in this class: 211
10-year publication summary
|
16
|
16
|
10
|
26
|
16
|
18
|
7
|
19
|
9
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hewlett-Packard Development Company, L.P. | 25864 |
10 |
| Ecolab USA Inc. | 5496 |
6 |
| Massachusetts Institute of Technology | 10062 |
5 |
| Hismer Bio-technology Co., Ltd. | 13 |
5 |
| Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 126 |
4 |
| Toyo Seikan Kaisha, Ltd. | 362 |
4 |
| Conopco, Inc. | 5040 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8752 |
3 |
| Chemfree Defoam LLC | 3 |
3 |
| Glencore Technology Pty Ltd | 51 |
3 |
| Siemens Healthcare Diagnostics Inc. | 2067 |
3 |
| Solenis Technologies, L.P. | 335 |
3 |
| Tetra Laval Holdings & Finance S.A. | 2152 |
3 |
| Hans Heidolph GmbH | 64 |
3 |
| Green Flow Industries, LLC | 5 |
3 |
| Wisdri Engineering & Research Incorporation Limited | 210 |
3 |
| General Electric Company | 13810 |
2 |
| Unilever PLC | 3187 |
2 |
| Unilever N.V. | 3096 |
2 |
| LG Chem, Ltd. | 17635 |
2 |
| Other owners | 139 |