- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 29/13 - Supported filter elements
Patent holdings for IPC class B01D 29/13
Total number of patents in this class: 243
10-year publication summary
|
32
|
21
|
28
|
22
|
20
|
26
|
29
|
14
|
24
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1682 |
15 |
| Donaldson Company, Inc. | 1513 |
12 |
| Nifco Inc. | 1103 |
12 |
| Cummins Filtration IP, Inc. | 812 |
11 |
| Caterpillar Inc. | 8877 |
9 |
| Life Technologies Corporation | 3068 |
6 |
| Aisan Kogyo Kabushiki Kaisha | 722 |
6 |
| HYDAC Filtertechnik GmbH | 294 |
6 |
| MAHLE International GmbH | 2670 |
5 |
| Denso Corporation | 23338 |
3 |
| Whirlpool Corporation | 4238 |
3 |
| Baldwin Filters, Inc. | 257 |
3 |
| Cummins Filtration Inc. | 171 |
3 |
| Parker Intangibles LLC | 1237 |
3 |
| PENTAIR Filtration Solutions, LLC | 77 |
3 |
| Repligen Corporation | 258 |
3 |
| Asia Connection LLC | 75 |
2 |
| Cummins Filtration SARL | 24 |
2 |
| DelStar Technologies Inc. | 65 |
2 |
| Enercon Services, Inc. | 7 |
2 |
| Other owners | 132 |