- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 35/147 - Bypass or safety valves
Patent holdings for IPC class B01D 35/147
Total number of patents in this class: 718
10-year publication summary
|
59
|
61
|
61
|
58
|
66
|
62
|
43
|
57
|
39
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1818 |
50 |
| Donaldson Company, Inc. | 1617 |
43 |
| HYDAC Filtertechnik GmbH | 290 |
32 |
| Rt-filtertechnik GmbH | 46 |
23 |
| LG Electronics Inc. | 76328 |
21 |
| Hengst SE | 183 |
18 |
| Caterpillar Inc. | 10364 |
16 |
| Hengst SE & Co. KG | 23 |
16 |
| Cummins Filtration IP, Inc. | 501 |
15 |
| Yamashin-filter Corp. | 132 |
15 |
| Atmus Filtration IP Inc. | 354 |
14 |
| MAHLE International GmbH | 2931 |
13 |
| M.P. Filtri S.p.A. | 38 |
11 |
| Samsung Electronics Co., Ltd. | 159755 |
9 |
| Hamilton Sundstrand Corporation | 5012 |
9 |
| Hubb Filters, Inc. | 10 |
9 |
| Schroeder Industries, LLC | 49 |
9 |
| UNGER Marketing International, LLC | 349 |
9 |
| Baldwin Filters, Inc. | 230 |
8 |
| Hengst GmbH & Co. KG | 37 |
8 |
| Other owners | 370 |