- All sections
- B - Performing operations; transporting
- 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: 2647
10-year publication summary
|
145
|
210
|
190
|
214
|
240
|
240
|
326
|
298
|
285
|
54
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1513 |
121 |
| Hollingsworth & Vose Company | 274 |
116 |
| 3m Innovative Properties Company | 18406 |
97 |
| Nitto Denko Corporation | 7879 |
78 |
| Toray Industries, Inc. | 6652 |
59 |
| Daikin Industries, Ltd. | 9495 |
40 |
| MANN+HUMMEL GmbH | 1682 |
31 |
| Toyobo Co., Ltd. | 2286 |
31 |
| Amogreentech Co., Ltd. | 566 |
29 |
| Neenah Gessner GmbH | 50 |
29 |
| E. I. du Pont de Nemours and Company | 4345 |
27 |
| Ahlstrom Oyj | 64 |
25 |
| Ahlstrom-munksjo Oyj | 242 |
25 |
| W. L. Gore & Associates, Inc. | 2600 |
23 |
| JNC Corporation | 1527 |
22 |
| Cummins Filtration IP, Inc. | 812 |
21 |
| EMD Millipore Corporation | 657 |
20 |
| Asahi Kasei Medical Co., Ltd. | 308 |
20 |
| LMS Technologies, Inc. | 27 |
19 |
| Ahlstrom Corporation | 77 |
18 |
| Other owners | 1796 |