- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
Patent holdings for IPC class B01D 39/16
Total number of patents in this class: 2851
10-year publication summary
|
200
|
180
|
207
|
232
|
226
|
316
|
293
|
286
|
181
|
164
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hollingsworth & Vose Company | 298 |
132 |
| Donaldson Company, Inc. | 1589 |
130 |
| 3m Innovative Properties Company | 17737 |
99 |
| Nitto Denko Corporation | 8350 |
78 |
| Toray Industries, Inc. | 7007 |
70 |
| Daikin Industries, Ltd. | 10153 |
44 |
| Neenah Gessner GmbH | 73 |
32 |
| MANN+HUMMEL GmbH | 1775 |
31 |
| Amogreentech Co., Ltd. | 619 |
30 |
| DelStar Technologies Inc. | 125 |
30 |
| Ahlstrom Oyj | 118 |
29 |
| LMS Technologies, Inc. | 39 |
28 |
| E. I. du Pont de Nemours and Company | 3905 |
25 |
| JNC Corporation | 1506 |
25 |
| Toyobo Co., Ltd. | 2468 |
25 |
| Ahlstrom-munksjo Oyj | 220 |
25 |
| LG Electronics Inc. | 73678 |
21 |
| EMD Millipore Corporation | 642 |
21 |
| W. L. Gore & Associates, Inc. | 2721 |
21 |
| Cummins Filtration IP, Inc. | 805 |
21 |
| Other owners | 1934 |