- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 24/00 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
Patent holdings for IPC class B01D 24/00
Total number of patents in this class: 749
10-year publication summary
|
52
|
46
|
53
|
46
|
53
|
44
|
41
|
32
|
27
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4856 |
36 |
| Panasonic Intellectual Property Management Co., Ltd. | 30568 |
18 |
| Yamashin-filter Corp. | 128 |
17 |
| Corning Incorporated | 10151 |
13 |
| Advanced Drainage Systems, Inc. | 335 |
12 |
| Donaldson Company, Inc. | 1579 |
12 |
| Ibiden Co., Ltd. | 1733 |
11 |
| Cummins Filtration IP, Inc. | 808 |
10 |
| Saudi Arabian Oil Company | 12711 |
8 |
| Solventum Intellectual Properties Company | 3293 |
8 |
| Hitachi Metals, Ltd. | 1990 |
6 |
| Evoqua Water Technologies LLC | 912 |
6 |
| Hitachi Zosen Corporation | 622 |
6 |
| Hollingsworth & Vose Company | 288 |
6 |
| Kurita Water Industries Ltd. | 1176 |
6 |
| Nihon Genryo Co., Ltd. | 12 |
6 |
| Xylem Water Solutions Zelienople LLC | 78 |
6 |
| Mitsubishi Heavy Industries, Ltd. | 8582 |
5 |
| Sumitomo Electric Industries, Ltd. | 15211 |
5 |
| Siemens Energy, Inc. | 1698 |
5 |
| Other owners | 547 |