- 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: 232
10-year publication summary
|
18
|
10
|
17
|
15
|
19
|
25
|
19
|
23
|
28
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Del Corporation | 11 |
7 |
| Fenwal, Inc. | 701 |
5 |
| Dow Global Technologies LLC | 10960 |
4 |
| Totalenergies Onetech | 1536 |
4 |
| Davy Powersports Inc. | 7 |
4 |
| Halliburton Energy Services, Inc. | 21320 |
2 |
| Robert Bosch GmbH | 44176 |
2 |
| Aquashield, Inc. | 4 |
2 |
| Daritech, Inc. | 28 |
2 |
| de Nora Water Technologies, LLC | 49 |
2 |
| Denny Hastings FLP 14 | 10 |
2 |
| Evoqua Water Technologies LLC | 930 |
2 |
| Gem Co., Ltd. | 356 |
2 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1544 |
2 |
| International Water-Guard Industries, Inc. | 11 |
2 |
| JK Industries, LLC | 10 |
2 |
| MANN+HUMMEL GmbH | 1808 |
2 |
| Ozono Polaris, S.A. de C.V. | 13 |
2 |
| Process Wastewater Technologies, LLC | 12 |
2 |
| Sepro Mineral Systems Corp. | 17 |
2 |
| Other owners | 178 |