- 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: 339
10-year publication summary
|
27
|
31
|
28
|
26
|
22
|
28
|
16
|
20
|
12
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cidra Corporate Services, Inc. | 199 |
15 |
| Cidra Corporate Services, LLC | 100 |
11 |
| Blue Skies Global LLC | 23 |
10 |
| Imerys Filtration Minerals, Inc. | 68 |
8 |
| Imerys USA, Inc. | 137 |
8 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6178 |
8 |
| Rhodia Operations | 1494 |
6 |
| Sartorius Stedim Biotech GmbH | 875 |
6 |
| Atmus Filtration IP Inc. | 273 |
6 |
| BASF SE | 21303 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
5 |
| EP Minerals, LLC | 90 |
5 |
| Johnson Matthey Public Limited Company | 1768 |
4 |
| KHS GmbH | 1452 |
4 |
| Sogefi Filtration France | 7 |
4 |
| Alcoa Canada Co | 6 |
4 |
| SKF Recondoil AB | 21 |
4 |
| EMD Millipore Corporation | 631 |
3 |
| Toray Industries, Inc. | 7113 |
3 |
| CHRETO ApS | 13 |
3 |
| Other owners | 217 |