- All sections
- B - Performing operations; transporting
- 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: 779
10-year publication summary
|
47
|
52
|
46
|
53
|
46
|
53
|
42
|
40
|
30
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4589 |
37 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
18 |
| Yamashin-filter Corp. | 115 |
17 |
| Corning Incorporated | 9932 |
13 |
| Ibiden Co., Ltd. | 1724 |
13 |
| Donaldson Company, Inc. | 1513 |
12 |
| Advanced Drainage Systems, Inc. | 304 |
11 |
| Cummins Filtration IP, Inc. | 812 |
10 |
| Saudi Arabian Oil Company | 11322 |
8 |
| Solventum Intellectual Properties Company | 2681 |
8 |
| Hitachi Metals, Ltd. | 2175 |
7 |
| Evoqua Water Technologies LLC | 904 |
6 |
| Hitachi Zosen Corporation | 609 |
6 |
| Hollingsworth & Vose Company | 274 |
6 |
| Kurita Water Industries Ltd. | 1110 |
6 |
| Nihon Genryo Co., Ltd. | 12 |
6 |
| Xylem Water Solutions Zelienople LLC | 78 |
6 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
5 |
| Sumitomo Electric Industries, Ltd. | 14131 |
5 |
| Whirlpool Corporation | 4238 |
5 |
| Other owners | 574 |