- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 39/00 - Filtering material for liquid or gaseous fluids
Patent holdings for IPC class B01D 39/00
Total number of patents in this class: 941
10-year publication summary
|
64
|
42
|
45
|
38
|
22
|
37
|
29
|
22
|
21
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17739 |
44 |
| NGK Insulators, Ltd. | 5134 |
35 |
| Donaldson Company, Inc. | 1589 |
29 |
| Cummins Filtration IP, Inc. | 805 |
23 |
| LG Chem, Ltd. | 17685 |
13 |
| Toray Industries, Inc. | 7006 |
11 |
| Baldwin Filters, Inc. | 240 |
10 |
| Hollingsworth & Vose Company | 299 |
10 |
| BL Technologies, Inc. | 838 |
9 |
| Entegris, Inc. | 1913 |
9 |
| Cidra Corporate Services, Inc. | 203 |
8 |
| LG Electronics Inc. | 73680 |
7 |
| MANN+HUMMEL GmbH | 1775 |
7 |
| Hitachi Metals, Ltd. | 1963 |
6 |
| Ibiden Co., Ltd. | 1714 |
6 |
| W. L. Gore & Associates, Inc. | 2723 |
6 |
| GLOBALFOUNDRIES U.S. Inc. | 6417 |
6 |
| Samsung Electronics Co., Ltd. | 148765 |
5 |
| The Regents of the University of California | 20245 |
5 |
| Honeywell International Inc. | 13547 |
5 |
| Other owners | 687 |