- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 37/02 - Precoating the filtering elements or materialAddition of filter aids to the liquid being filtered
Patent holdings for IPC class B01D 37/02
Total number of patents in this class: 334
10-year publication summary
|
18
|
27
|
31
|
28
|
26
|
22
|
27
|
16
|
20
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cidra Corporate Services, Inc. | 202 |
15 |
| Blue Skies Global LLC | 17 |
10 |
| Cidra Corporate Services, LLC | 91 |
9 |
| Imerys Filtration Minerals, Inc. | 67 |
8 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6269 |
8 |
| Imerys USA, Inc. | 143 |
7 |
| Sartorius Stedim Biotech GmbH | 825 |
7 |
| Cummins Filtration IP, Inc. | 808 |
6 |
| Rhodia Operations | 1581 |
6 |
| BASF SE | 20803 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8657 |
5 |
| EP Minerals, LLC | 90 |
5 |
| KHS GmbH | 1415 |
4 |
| Sogefi Filtration France | 7 |
4 |
| Suez International | 333 |
4 |
| Alcoa Canada Co | 6 |
4 |
| SKF Recondoil AB | 23 |
4 |
| EMD Millipore Corporation | 649 |
3 |
| Toray Industries, Inc. | 6906 |
3 |
| CHRETO ApS | 12 |
3 |
| Other owners | 214 |