- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/13 - Supported filter elements
Patent holdings for IPC class B01D 29/13
Total number of patents in this class: 269
10-year publication summary
|
27
|
21
|
20
|
24
|
27
|
15
|
23
|
20
|
16
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1794 |
14 |
| Caterpillar Inc. | 9998 |
12 |
| Nifco Inc. | 1111 |
12 |
| Cummins Filtration IP, Inc. | 775 |
11 |
| Donaldson Company, Inc. | 1589 |
11 |
| Life Technologies Corporation | 3373 |
6 |
| Aisan Kogyo Kabushiki Kaisha | 760 |
6 |
| HYDAC Filtertechnik GmbH | 290 |
6 |
| Cummins Filtration Inc. | 183 |
5 |
| MAHLE International GmbH | 2851 |
5 |
| Whirlpool Corporation | 4519 |
3 |
| Baldwin Filters, Inc. | 236 |
3 |
| Parker Intangibles LLC | 1196 |
3 |
| PENTAIR Filtration Solutions, LLC | 85 |
3 |
| Repligen Corporation | 293 |
3 |
| Denso Corporation | 24983 |
2 |
| Asia Connection LLC | 74 |
2 |
| Coway Co., Ltd. | 759 |
2 |
| DelStar Technologies Inc. | 127 |
2 |
| Enercon Services, Inc. | 6 |
2 |
| Other owners | 156 |