- 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: 897
10-year publication summary
|
47
|
47
|
39
|
25
|
42
|
34
|
25
|
23
|
16
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17458 |
39 |
| Donaldson Company, Inc. | 1608 |
28 |
| NGK Insulators, Ltd. | 5200 |
27 |
| Cummins Filtration IP, Inc. | 584 |
19 |
| Hollingsworth & Vose Company | 301 |
11 |
| Nanoh2o Co., Ltd. | 60 |
11 |
| Toray Industries, Inc. | 7139 |
10 |
| Baldwin Filters, Inc. | 231 |
9 |
| BL Technologies, Inc. | 839 |
9 |
| Cidra Corporate Services, Inc. | 199 |
8 |
| Samsung Electronics Co., Ltd. | 158442 |
7 |
| LG Electronics Inc. | 75855 |
7 |
| Entegris, Inc. | 2011 |
7 |
| W. L. Gore & Associates, Inc. | 2723 |
6 |
| GLOBALFOUNDRIES U.S. Inc. | 6380 |
6 |
| MANN+HUMMEL GmbH | 1813 |
6 |
| The Regents of the University of California | 20815 |
5 |
| Honeywell International Inc. | 12776 |
5 |
| Hitachi Metals, Ltd. | 1826 |
5 |
| Massachusetts Institute of Technology | 10282 |
5 |
| Other owners | 667 |