- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 21/02 - Settling tanks
Patent holdings for IPC class B01D 21/02
Total number of patents in this class: 558
10-year publication summary
|
25
|
52
|
55
|
49
|
52
|
39
|
29
|
22
|
36
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gem Co., Ltd. | 362 |
8 |
| Kurita Water Industries Ltd. | 1297 |
8 |
| PT Qmb New Energy Materials | 257 |
8 |
| Contech Engineered Solutions LLC | 278 |
7 |
| Evoqua Water Technologies LLC | 928 |
6 |
| Thermaco, Inc. | 58 |
6 |
| PT ESG New Energy Material | 158 |
6 |
| PT Green Eco Nickel | 102 |
6 |
| Mycelx Technologies Corporation | 30 |
5 |
| United Rentals, Inc. | 114 |
5 |
| CP Energy Services, Inc. | 9 |
5 |
| Naf Water Filtration LLC | 11 |
5 |
| Naf Contrco LLC | 11 |
5 |
| North American Filtration Enterprises LLC | 9 |
5 |
| North American Filtration Holdings LLC | 11 |
5 |
| China Petroleum & Chemical Corporation | 2190 |
4 |
| Hydro International Limited, | 41 |
4 |
| Jim Myers & Sons, Inc. | 6 |
4 |
| Kbk Industries, LLC | 19 |
4 |
| Metawater Co., Ltd. | 203 |
4 |
| Other owners | 448 |