- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 35/143 - Filter condition indicators
Patent holdings for IPC class B01D 35/143
Total number of patents in this class: 578
10-year publication summary
|
56
|
57
|
62
|
68
|
63
|
46
|
48
|
45
|
36
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cummins Filtration IP, Inc. | 809 |
42 |
| Donaldson Company, Inc. | 1595 |
20 |
| Haier US Appliance Solutions, Inc. | 3554 |
16 |
| Caterpillar Inc. | 9449 |
15 |
| HYDAC Filtertechnik GmbH | 295 |
11 |
| Samsung Electronics Co., Ltd. | 143812 |
10 |
| 3m Innovative Properties Company | 17842 |
10 |
| Whirlpool Corporation | 4386 |
10 |
| Outotec (Finland) Oy | 480 |
8 |
| Laica S.p.A. | 96 |
7 |
| Ufi Filters S.p.A. | 198 |
7 |
| UNGER Marketing International, LLC | 325 |
7 |
| Brita LP | 96 |
6 |
| LG Electronics Inc. | 72357 |
5 |
| Evoqua Water Technologies LLC | 915 |
5 |
| Pall Corporation | 335 |
5 |
| Safran Aircraft Engines | 6225 |
5 |
| Watts Regulator Co. | 304 |
5 |
| Hengst SE | 158 |
5 |
| Komatsu Ltd. | 4505 |
4 |
| Other owners | 375 |