- All sections
- B - Performing operations; transporting
- 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: 1124
10-year publication summary
|
87
|
98
|
95
|
136
|
106
|
127
|
92
|
93
|
67
|
19
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1682 |
48 |
| Donaldson Company, Inc. | 1513 |
43 |
| Caterpillar Inc. | 8877 |
40 |
| HYDAC Filtertechnik GmbH | 294 |
38 |
| Yamashin-filter Corp. | 115 |
32 |
| Cummins Filtration IP, Inc. | 812 |
24 |
| MAHLE International GmbH | 2670 |
22 |
| Repligen Corporation | 258 |
17 |
| Fuji Filter Manufacturing Co., Ltd. | 53 |
12 |
| HYDAC Process Technology GmbH | 89 |
12 |
| Nifco Inc. | 1103 |
11 |
| PanAsia Co., Ltd. | 109 |
11 |
| Aisan Kogyo Kabushiki Kaisha | 722 |
10 |
| Brita LP | 110 |
10 |
| Robert Bosch GmbH | 40953 |
9 |
| Amiad Water Systems Ltd. | 48 |
9 |
| Midea Group Co., Ltd. | 4025 |
9 |
| ROKI Techno Co., Ltd | 41 |
9 |
| Entegris, Inc. | 1736 |
8 |
| Aqseptence Group, Inc. | 103 |
7 |
| Other owners | 743 |