- 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: 919
10-year publication summary
|
87
|
71
|
97
|
87
|
73
|
68
|
46
|
47
|
36
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1795 |
100 |
| MAHLE International GmbH | 2864 |
50 |
| Cummins Filtration IP, Inc. | 774 |
49 |
| Caterpillar Inc. | 10025 |
47 |
| Ufi Filters S.p.A. | 192 |
31 |
| Donaldson Company, Inc. | 1585 |
24 |
| HYDAC Filtertechnik GmbH | 289 |
24 |
| Omachron Intellectual Property Inc. | 952 |
19 |
| Yamashin-filter Corp. | 130 |
16 |
| Hengst SE | 175 |
15 |
| Baldwin Filters, Inc. | 235 |
12 |
| Cummins Filtration Inc. | 165 |
12 |
| Sartorius Stedim Biotech GmbH | 872 |
8 |
| Sun Patent Trust | 2004 |
8 |
| Robert Bosch GmbH | 43428 |
7 |
| Saint-Gobain Performance Plastics Corporation | 1039 |
7 |
| Tokyo Electron Limited | 13459 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 33202 |
6 |
| Davco Technology, LLC | 33 |
6 |
| Hamilton Sundstrand Corporation | 5010 |
5 |
| Other owners | 467 |