- 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: 284
10-year publication summary
|
16
|
26
|
30
|
24
|
30
|
33
|
28
|
17
|
23
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 9866 |
18 |
| Donaldson Company, Inc. | 1595 |
12 |
| Precision Planting LLC | 1150 |
7 |
| Aqseptence Group, Inc. | 85 |
6 |
| Midea Group Co., Ltd. | 4685 |
6 |
| Yamashin-filter Corp. | 130 |
6 |
| MANN+HUMMEL GmbH | 1778 |
5 |
| Foshan Shunde Midea Water Dispenser Mfg. Co., Ltd. | 126 |
5 |
| Alfa Laval Corporate AB | 1327 |
4 |
| Johnson Screens, Inc. | 42 |
4 |
| Pall Corporation | 336 |
4 |
| Tianjin Yunda Industry and Trade Co., Ltd. | 15 |
4 |
| Dow Global Technologies LLC | 10582 |
3 |
| Baldwin Filters, Inc. | 241 |
3 |
| Cummins Filtration IP, Inc. | 803 |
3 |
| Haier US Appliance Solutions, Inc. | 3803 |
3 |
| Louisville Water Company | 17 |
3 |
| MAHLE International GmbH | 2841 |
3 |
| Parker Intangibles LLC | 1199 |
3 |
| C.C. Jensen A/S | 50 |
3 |
| Other owners | 179 |