- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 36/00 - Filter circuits or combinations of filters with other separating devices
Patent holdings for IPC class B01D 36/00
Total number of patents in this class: 902
10-year publication summary
|
78
|
87
|
71
|
97
|
87
|
73
|
68
|
46
|
47
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1769 |
98 |
| Cummins Filtration IP, Inc. | 806 |
52 |
| MAHLE International GmbH | 2798 |
48 |
| Caterpillar Inc. | 9644 |
46 |
| Ufi Filters S.p.A. | 195 |
31 |
| HYDAC Filtertechnik GmbH | 295 |
25 |
| Donaldson Company, Inc. | 1603 |
24 |
| Omachron Intellectual Property Inc. | 924 |
17 |
| Yamashin-filter Corp. | 128 |
15 |
| Hengst SE | 166 |
13 |
| Baldwin Filters, Inc. | 243 |
12 |
| Cummins Filtration Inc. | 199 |
12 |
| Sartorius Stedim Biotech GmbH | 840 |
8 |
| Sun Patent Trust | 2004 |
8 |
| Robert Bosch GmbH | 42826 |
7 |
| Saint-Gobain Performance Plastics Corporation | 1034 |
7 |
| Tokyo Electron Limited | 12994 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
6 |
| Davco Technology, LLC | 35 |
6 |
| Hamilton Sundstrand Corporation | 4931 |
5 |
| Other owners | 456 |