- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 35/143 - Filter condition indicators
Patent holdings for IPC class B01D 35/143
Total number of patents in this class: 570
10-year publication summary
|
42
|
56
|
57
|
62
|
67
|
63
|
47
|
48
|
44
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cummins Filtration IP, Inc. | 812 |
41 |
| Donaldson Company, Inc. | 1513 |
21 |
| Haier US Appliance Solutions, Inc. | 3178 |
16 |
| Caterpillar Inc. | 8877 |
15 |
| 3m Innovative Properties Company | 18406 |
13 |
| HYDAC Filtertechnik GmbH | 294 |
11 |
| Whirlpool Corporation | 4238 |
9 |
| Samsung Electronics Co., Ltd. | 131630 |
8 |
| Laica S.p.A. | 98 |
8 |
| Outotec (Finland) Oy | 491 |
8 |
| Ufi Filters S.p.A. | 196 |
8 |
| Brita LP | 110 |
7 |
| UNGER Marketing International, LLC | 304 |
7 |
| Pall Corporation | 392 |
6 |
| Safran Aircraft Engines | 5739 |
5 |
| DV Industries, LLC | 6 |
4 |
| Evoqua Water Technologies LLC | 904 |
4 |
| MANN+HUMMEL GmbH | 1682 |
4 |
| Scania CV AB | 2330 |
4 |
| Watts Regulator Co. | 284 |
4 |
| Other owners | 367 |