- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/66 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
Patent holdings for IPC class B01D 29/66
Total number of patents in this class: 583
10-year publication summary
|
53
|
39
|
48
|
52
|
46
|
45
|
47
|
32
|
32
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| HYDAC Process Technology GmbH | 88 |
22 |
| ThermoChem Recovery International, Inc. | 98 |
14 |
| Fuji Filter Manufacturing Co., Ltd. | 55 |
13 |
| Precision Planting LLC | 1169 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 33839 |
10 |
| Hitachi Zosen Corporation | 608 |
8 |
| Amiad Water Systems Ltd. | 53 |
7 |
| Filtration Technology Corporation | 48 |
7 |
| Metawater Co., Ltd. | 201 |
7 |
| Repligen Corporation | 293 |
7 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
6 |
| Greyter Water Systems, Inc., AKA Greyter | 10 |
6 |
| Kanagawa Kiki Kogyo Co., Ltd. | 9 |
6 |
| Lely Patent N.V. | 762 |
6 |
| Sumitomo Electric Industries, Ltd. | 16195 |
5 |
| Boll & Kirch Filterbau GmbH | 36 |
5 |
| Kuraray Co., Ltd. | 3583 |
5 |
| Kurita Water Industries Ltd. | 1271 |
5 |
| Nihon Genryo Co., Ltd. | 13 |
5 |
| Pentair Water Pool and Spa, Inc. | 436 |
5 |
| Other owners | 423 |