- 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: 285
10-year publication summary
|
27
|
32
|
24
|
33
|
36
|
28
|
18
|
23
|
24
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10281 |
17 |
| Donaldson Company, Inc. | 1607 |
13 |
| Aqseptence Group, Inc. | 79 |
6 |
| MANN+HUMMEL GmbH | 1808 |
6 |
| Midea Group Co., Ltd. | 5034 |
6 |
| Precision Planting LLC | 1196 |
6 |
| Yamashin-filter Corp. | 131 |
6 |
| Foshan Shunde Midea Water Dispenser Mfg. Co., Ltd. | 139 |
5 |
| Alfa Laval Corporate AB | 1336 |
4 |
| Johnson Screens, Inc. | 44 |
4 |
| Pall Corporation | 340 |
4 |
| Tianjin Yunda Industry and Trade Co., Ltd. | 15 |
4 |
| Dow Global Technologies LLC | 10960 |
3 |
| Baldwin Filters, Inc. | 230 |
3 |
| Haier US Appliance Solutions, Inc. | 4041 |
3 |
| Louisville Water Company | 17 |
3 |
| MAHLE International GmbH | 2917 |
3 |
| Parker Intangibles LLC | 1170 |
3 |
| C.C. Jensen A/S | 52 |
3 |
| Synfuel Americas Corporation | 10 |
3 |
| Other owners | 180 |