- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 36/04 - Combinations of filters with settling tanks
Patent holdings for IPC class B01D 36/04
Total number of patents in this class: 221
10-year publication summary
|
11
|
18
|
10
|
17
|
15
|
18
|
23
|
18
|
21
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Del Corporation | 11 |
7 |
| Fenwal, Inc. | 680 |
5 |
| Dow Global Technologies LLC | 10582 |
4 |
| Davy Powersports Inc. | 6 |
3 |
| Halliburton Energy Services, Inc. | 21103 |
2 |
| Robert Bosch GmbH | 43114 |
2 |
| Aquashield, Inc. | 4 |
2 |
| Cummins Filtration IP, Inc. | 803 |
2 |
| Daritech, Inc. | 32 |
2 |
| Denny Hastings FLP 14 | 11 |
2 |
| Evoqua Water Technologies LLC | 922 |
2 |
| Gem Co., Ltd. | 230 |
2 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1491 |
2 |
| International Water-Guard Industries, Inc. | 11 |
2 |
| JK Industries, LLC | 10 |
2 |
| MANN+HUMMEL GmbH | 1778 |
2 |
| Ozono Polaris, S.A. de C.V. | 9 |
2 |
| Process Wastewater Technologies, LLC | 12 |
2 |
| Sepro Mineral Systems Corp. | 17 |
2 |
| Sichuan University | 584 |
2 |
| Other owners | 170 |