- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/58 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
Patent holdings for IPC class B01D 29/58
Total number of patents in this class: 462
10-year publication summary
|
40
|
57
|
33
|
49
|
38
|
38
|
26
|
46
|
30
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1606 |
31 |
| MANN+HUMMEL GmbH | 1815 |
30 |
| HYDAC Filtertechnik GmbH | 290 |
25 |
| Caterpillar Inc. | 10302 |
21 |
| Cummins Filtration IP, Inc. | 582 |
15 |
| Atmus Filtration IP Inc. | 275 |
13 |
| MAHLE International GmbH | 2919 |
10 |
| M.P. Filtri S.p.A. | 38 |
10 |
| HYDAC Process Technology GmbH | 85 |
8 |
| Yamashin-filter Corp. | 132 |
8 |
| Hengst SE | 182 |
8 |
| Pall Corporation | 335 |
7 |
| Ufi Filters S.p.A. | 193 |
7 |
| Midea Group Co., Ltd. | 5070 |
6 |
| Strauss Water Ltd. | 90 |
5 |
| Foshan Shunde Midea Water Dispenser Manufacturing Co., Ltd. | 91 |
5 |
| Parker Intangibles LLC | 1164 |
4 |
| Trustees of Tufts College | 988 |
4 |
| Ufi Innovation Center S.r.l. | 75 |
4 |
| Filtration Group GmbH | 17 |
4 |
| Other owners | 237 |