- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/33 - Self-supporting filtering elements arranged for inward flow filtration
Patent holdings for IPC class B01D 29/33
Total number of patents in this class: 281
10-year publication summary
|
27
|
32
|
24
|
33
|
36
|
28
|
18
|
23
|
23
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10180 |
17 |
| Donaldson Company, Inc. | 1592 |
13 |
| Aqseptence Group, Inc. | 80 |
6 |
| Midea Group Co., Ltd. | 4864 |
6 |
| Precision Planting LLC | 1171 |
6 |
| Yamashin-filter Corp. | 130 |
6 |
| MANN+HUMMEL GmbH | 1800 |
5 |
| Foshan Shunde Midea Water Dispenser Mfg. Co., Ltd. | 132 |
5 |
| Alfa Laval Corporate AB | 1332 |
4 |
| Johnson Screens, Inc. | 42 |
4 |
| Pall Corporation | 341 |
4 |
| Tianjin Yunda Industry and Trade Co., Ltd. | 15 |
4 |
| Dow Global Technologies LLC | 10824 |
3 |
| Baldwin Filters, Inc. | 230 |
3 |
| Haier US Appliance Solutions, Inc. | 3980 |
3 |
| Louisville Water Company | 17 |
3 |
| MAHLE International GmbH | 2885 |
3 |
| Parker Intangibles LLC | 1179 |
3 |
| C.C. Jensen A/S | 50 |
3 |
| Synfuel Americas Corporation | 10 |
3 |
| Other owners | 177 |