- 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: 224
10-year publication summary
|
20
|
11
|
26
|
17
|
19
|
7
|
20
|
10
|
11
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hewlett-Packard Development Company, L.P. | 25184 |
10 |
| Ecolab USA Inc. | 5796 |
6 |
| Massachusetts Institute of Technology | 10251 |
5 |
| Wisdri Engineering & Research Incorporation Limited | 222 |
5 |
| Hismer Bio-technology Co., Ltd. | 10 |
4 |
| Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 126 |
4 |
| Conopco, Inc. | 5086 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
3 |
| Chemfree Defoam LLC | 3 |
3 |
| Glencore Technology Pty Ltd | 55 |
3 |
| Siemens Healthcare Diagnostics Inc. | 2146 |
3 |
| Tetra Laval Holdings & Finance S.A. | 2231 |
3 |
| Yara International ASA | 900 |
3 |
| Hans Heidolph GmbH | 65 |
3 |
| Green Flow Industries, LLC | 5 |
3 |
| Cytiva Sweden AB | 789 |
3 |
| General Electric Company | 13899 |
2 |
| Unilever PLC | 2999 |
2 |
| Unilever N.V. | 2913 |
2 |
| LG Chem, Ltd. | 17921 |
2 |
| Other owners | 152 |