- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/90 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for feeding
Patent holdings for IPC class B01D 29/90
Total number of patents in this class: 453
10-year publication summary
|
24
|
43
|
43
|
44
|
43
|
48
|
42
|
40
|
28
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10151 |
24 |
| Repligen Corporation | 293 |
13 |
| Adey Holdings (2008) Limited | 322 |
11 |
| Cummins Filtration IP, Inc. | 624 |
10 |
| M.P. Filtri S.p.A. | 37 |
10 |
| Blue Skies Global LLC | 21 |
10 |
| HYDAC Filtertechnik GmbH | 288 |
9 |
| Derrick Corporation | 254 |
8 |
| Yamashin-filter Corp. | 129 |
8 |
| EMD Millipore Corporation | 633 |
6 |
| Robert Bosch GmbH | 43631 |
6 |
| Cytiva Sweden AB | 782 |
6 |
| Murata Manufacturing Co., Ltd. | 25552 |
5 |
| Donaldson Company, Inc. | 1591 |
5 |
| HYDAC Process Technology GmbH | 89 |
5 |
| MAHLE International GmbH | 2883 |
5 |
| MST NL B.V. | 5 |
5 |
| CLEANR Inc. | 32 |
5 |
| Georgia Tech Research Corporation | 2901 |
4 |
| Atmus Filtration IP Inc. | 226 |
4 |
| Other owners | 294 |