- 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: 895
10-year publication summary
|
80
|
88
|
71
|
101
|
89
|
74
|
69
|
45
|
47
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1756 |
98 |
| Cummins Filtration IP, Inc. | 808 |
51 |
| MAHLE International GmbH | 2765 |
47 |
| Caterpillar Inc. | 9540 |
46 |
| Ufi Filters S.p.A. | 195 |
31 |
| Donaldson Company, Inc. | 1599 |
25 |
| HYDAC Filtertechnik GmbH | 296 |
25 |
| Omachron Intellectual Property Inc. | 903 |
17 |
| Yamashin-filter Corp. | 129 |
15 |
| Baldwin Filters, Inc. | 241 |
12 |
| Cummins Filtration Inc. | 194 |
12 |
| Hengst SE | 162 |
12 |
| Sartorius Stedim Biotech GmbH | 831 |
8 |
| Sun Patent Trust | 1999 |
8 |
| Robert Bosch GmbH | 42674 |
7 |
| Saint-Gobain Performance Plastics Corporation | 1036 |
7 |
| Tokyo Electron Limited | 12694 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 31330 |
6 |
| Davco Technology, LLC | 35 |
6 |
| Hamilton Sundstrand Corporation | 4865 |
5 |
| Other owners | 451 |