- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 21/01 - Separation of suspended solid particles from liquids by sedimentation using flocculating agents
Patent holdings for IPC class B01D 21/01
Total number of patents in this class: 1031
10-year publication summary
|
88
|
77
|
89
|
78
|
73
|
76
|
44
|
38
|
49
|
29
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kurita Water Industries Ltd. | 1234 |
48 |
| SunCor Energy Inc. | 741 |
36 |
| Kemira Oyj | 1228 |
25 |
| Ecolab USA Inc. | 5607 |
24 |
| Dexerials Corporation | 1960 |
16 |
| BASF SE | 21137 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 32551 |
13 |
| S.p.c.m. SA | 239 |
11 |
| Organo Corporation | 507 |
10 |
| Nalco Company | 564 |
9 |
| Hitachi, Ltd. | 15726 |
8 |
| Clearflow Group Inc. | 14 |
8 |
| Metawater Co., Ltd. | 201 |
8 |
| Dow Global Technologies LLC | 10582 |
7 |
| Mitsubishi Chemical Corporation | 4608 |
7 |
| Extrakt Process Solutions LLC | 36 |
7 |
| Imperial Oil Resources Limited | 170 |
7 |
| BASF (China) Co., Ltd. | 860 |
7 |
| MT AquaPolymer, Inc. | 14 |
7 |
| SNF Group | 376 |
7 |
| Other owners | 753 |