- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/11 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
Patent holdings for IPC class B01D 29/11
Total number of patents in this class: 1248
10-year publication summary
|
92
|
95
|
133
|
102
|
116
|
98
|
95
|
72
|
82
|
82
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1777 |
48 |
| Donaldson Company, Inc. | 1589 |
47 |
| Caterpillar Inc. | 9852 |
46 |
| HYDAC Filtertechnik GmbH | 293 |
38 |
| Yamashin-filter Corp. | 130 |
35 |
| Cummins Filtration IP, Inc. | 805 |
24 |
| MAHLE International GmbH | 2838 |
21 |
| Precision Planting LLC | 1148 |
16 |
| Repligen Corporation | 291 |
15 |
| Fuji Filter Manufacturing Co., Ltd. | 55 |
13 |
| Entegris, Inc. | 1914 |
12 |
| HYDAC Process Technology GmbH | 92 |
12 |
| PanAsia Co., Ltd. | 118 |
11 |
| Brita LP | 93 |
10 |
| Midea Group Co., Ltd. | 4684 |
10 |
| Nifco Inc. | 1110 |
10 |
| Robert Bosch GmbH | 43096 |
9 |
| Aisan Kogyo Kabushiki Kaisha | 750 |
9 |
| ROKI Techno Co., Ltd | 51 |
9 |
| Amiad Water Systems Ltd. | 51 |
8 |
| Other owners | 845 |