- All sections
- B - Performing operations; transporting
- 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: 449
10-year publication summary
|
34
|
43
|
30
|
50
|
41
|
49
|
45
|
40
|
29
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yamashin-filter Corp. | 115 |
26 |
| Rt-filtertechnik GmbH | 44 |
21 |
| HYDAC Filtertechnik GmbH | 294 |
19 |
| Donaldson Company, Inc. | 1513 |
15 |
| Robert Bosch GmbH | 40953 |
14 |
| Caterpillar Inc. | 8877 |
9 |
| Aisan Kogyo Kabushiki Kaisha | 722 |
9 |
| Life Technologies Corporation | 3068 |
8 |
| Schroeder Industries, LLC | 48 |
8 |
| IBS Filtran Kunststoff / Metallerzeugnisse GmbH | 27 |
6 |
| Ford Global Technologies, LLC | 19702 |
5 |
| Continental Automotive GmbH | 5573 |
5 |
| ZF Friedrichshafen AG | 6820 |
5 |
| Contech Engineered Solutions LLC | 208 |
5 |
| Kohler Co. | 4165 |
4 |
| Aquis Wasser-Luft-Systeme GmbH, Lindau, Zweigniederlassung Rebstein | 44 |
4 |
| MANN+HUMMEL GmbH | 1682 |
4 |
| M.P. Filtri S.p.A. | 23 |
4 |
| GVS Filtration Inc. | 23 |
4 |
| Toyota Motor Corporation | 28582 |
3 |
| Other owners | 271 |