- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 24/46 - Regenerating the filtering material in the filter
Patent holdings for IPC class B01D 24/46
Total number of patents in this class: 445
10-year publication summary
|
37
|
41
|
40
|
36
|
39
|
42
|
32
|
30
|
29
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Xylem Water Solutions Zelienople LLC | 78 |
18 |
| Roberts Marketing DE, Inc. | 24 |
16 |
| Nihon Genryo Co., Ltd. | 12 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
10 |
| Siemens Energy, Inc. | 1770 |
9 |
| Hitachi Zosen Corporation | 609 |
9 |
| Metawater Co., Ltd. | 181 |
8 |
| Sumitomo Electric Industries, Ltd. | 14131 |
7 |
| Meurer Research, Inc. | 32 |
7 |
| Saudi Arabian Oil Company | 11322 |
6 |
| Evolution Aqua Limited | 16 |
6 |
| Neptune Benson, Inc. | 51 |
6 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
5 |
| Nagaoka International Corporation | 7 |
5 |
| Nexom (U.S.), Inc. | 20 |
5 |
| Parkson Corporation | 98 |
5 |
| Westech Engineering LLC | 40 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
4 |
| Whirlpool Corporation | 4238 |
4 |
| Advanced Drainage Systems, Inc. | 304 |
4 |
| Other owners | 295 |