- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 35/027 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
Patent holdings for IPC class B01D 35/027
Total number of patents in this class: 488
10-year publication summary
|
30
|
50
|
41
|
49
|
45
|
41
|
36
|
33
|
26
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yamashin-filter Corp. | 131 |
31 |
| Rt-filtertechnik GmbH | 46 |
23 |
| Donaldson Company, Inc. | 1600 |
21 |
| HYDAC Filtertechnik GmbH | 286 |
18 |
| Robert Bosch GmbH | 44128 |
14 |
| M.P. Filtri S.p.A. | 38 |
12 |
| Caterpillar Inc. | 10272 |
10 |
| Schroeder Industries, LLC | 48 |
10 |
| Life Technologies Corporation | 3456 |
9 |
| Aisan Kogyo Kabushiki Kaisha | 767 |
9 |
| Continental Automotive GmbH | 4507 |
6 |
| IBS Filtran Kunststoff / Metallerzeugnisse GmbH | 27 |
6 |
| Ford Global Technologies, LLC | 21478 |
5 |
| ZF Friedrichshafen AG | 7235 |
5 |
| Contech Engineered Solutions LLC | 282 |
5 |
| Vitesco Technologies GmbH | 2398 |
5 |
| Discovery Energy, LLC | 387 |
5 |
| Haier US Appliance Solutions, Inc. | 4031 |
4 |
| MANN+HUMMEL GmbH | 1812 |
4 |
| Marin Scientific Development Company | 5 |
4 |
| Other owners | 282 |