- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 35/28 - Strainers not provided for elsewhere
Patent holdings for IPC class B01D 35/28
Total number of patents in this class: 224
10-year publication summary
|
22
|
22
|
16
|
11
|
13
|
10
|
13
|
12
|
9
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 8877 |
6 |
| Cummins Filtration IP, Inc. | 812 |
6 |
| Donaldson Company, Inc. | 1513 |
6 |
| MANN+HUMMEL GmbH | 1682 |
6 |
| Pall Corporation | 392 |
6 |
| Atomic Energy of Canada Limited | 132 |
5 |
| Baldwin Filters, Inc. | 257 |
5 |
| Advanced Filtration Systems Inc. | 24 |
4 |
| Hamilton Sundstrand Corporation | 4525 |
3 |
| Stryker Corporation | 3864 |
3 |
| Aqseptence Group, Inc. | 103 |
3 |
| Hayward Industries, Inc. | 669 |
3 |
| Parker Intangibles LLC | 1237 |
3 |
| TM Industrial Supply, Inc. | 19 |
3 |
| Baker Hughes Incorporated | 5689 |
2 |
| 3m Innovative Properties Company | 18406 |
2 |
| EMD Millipore Corporation | 657 |
2 |
| Altus Intervention AS | 21 |
2 |
| Asahi Kasei Medical Co., Ltd. | 308 |
2 |
| BHI Co., Ltd. | 10 |
2 |
| Other owners | 150 |