- 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: 468
10-year publication summary
|
24
|
43
|
43
|
44
|
43
|
48
|
42
|
40
|
28
|
35
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10316 |
24 |
| Repligen Corporation | 300 |
13 |
| Adey Holdings (2008) Limited | 320 |
11 |
| M.P. Filtri S.p.A. | 38 |
10 |
| Blue Skies Global LLC | 22 |
10 |
| Cummins Filtration IP, Inc. | 580 |
8 |
| Derrick Corporation | 254 |
8 |
| HYDAC Filtertechnik GmbH | 289 |
8 |
| Yamashin-filter Corp. | 132 |
8 |
| MST NL B.V. | 6 |
7 |
| EMD Millipore Corporation | 634 |
6 |
| Robert Bosch GmbH | 44327 |
6 |
| Cytiva Sweden AB | 796 |
6 |
| CLEANR Inc. | 35 |
6 |
| Atmus Filtration IP Inc. | 277 |
6 |
| Murata Manufacturing Co., Ltd. | 25917 |
5 |
| Donaldson Company, Inc. | 1607 |
5 |
| MAHLE International GmbH | 2921 |
5 |
| Georgia Tech Research Corporation | 2977 |
4 |
| HYDAC Process Technology GmbH | 84 |
4 |
| Other owners | 308 |