- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 19/02 - Foam dispersion or prevention
Patent holdings for IPC class B01D 19/02
Total number of patents in this class: 213
10-year publication summary
|
18
|
20
|
11
|
26
|
17
|
19
|
7
|
20
|
8
|
2
|
| 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. | 27461 |
11 |
| Ecolab USA Inc. | 5341 |
6 |
| Massachusetts Institute of Technology | 9913 |
5 |
| Hismer Bio-technology Co., Ltd. | 13 |
5 |
| Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 124 |
4 |
| Toyo Seikan Kaisha, Ltd. | 388 |
4 |
| Conopco, Inc. | 4808 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8538 |
3 |
| Chemfree Defoam LLC | 3 |
3 |
| Glencore Technology Pty Ltd | 48 |
3 |
| Siemens Healthcare Diagnostics Inc. | 2009 |
3 |
| Solenis Technologies, L.P. | 321 |
3 |
| Tetra Laval Holdings & Finance S.A. | 2076 |
3 |
| Hans Heidolph GmbH | 63 |
3 |
| Green Flow Industries, LLC | 5 |
3 |
| Wisdri Engineering & Research Incorporation Limited | 180 |
3 |
| Unilever PLC | 3328 |
2 |
| Unilever N.V. | 3224 |
2 |
| Siemens AG | 24565 |
2 |
| LG Chem, Ltd. | 17639 |
2 |
| Other owners | 140 |