- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 35/147 - Bypass or safety valves
Patent holdings for IPC class B01D 35/147
Total number of patents in this class: 674
10-year publication summary
|
60
|
59
|
61
|
61
|
58
|
65
|
61
|
40
|
50
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1720 |
55 |
| Donaldson Company, Inc. | 1576 |
45 |
| HYDAC Filtertechnik GmbH | 296 |
29 |
| Cummins Filtration IP, Inc. | 807 |
28 |
| Rt-filtertechnik GmbH | 45 |
22 |
| LG Electronics Inc. | 70831 |
18 |
| Hengst SE | 134 |
17 |
| Hengst SE & Co. KG | 23 |
16 |
| MAHLE International GmbH | 2687 |
16 |
| Caterpillar Inc. | 9149 |
13 |
| Yamashin-filter Corp. | 126 |
13 |
| Baldwin Filters, Inc. | 240 |
10 |
| Hubb Filters, Inc. | 10 |
9 |
| UNGER Marketing International, LLC | 310 |
9 |
| Samsung Electronics Co., Ltd. | 138320 |
8 |
| Hengst GmbH & Co. KG | 59 |
8 |
| Hamilton Sundstrand Corporation | 4712 |
7 |
| Schroeder Industries, LLC | 51 |
7 |
| Deere & Company | 7309 |
6 |
| Robert Bosch GmbH | 41695 |
6 |
| Other owners | 332 |