- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 39/14 - Other self-supporting filtering material
Patent holdings for IPC class B01D 39/14
Total number of patents in this class: 958
10-year publication summary
|
58
|
59
|
52
|
48
|
48
|
63
|
35
|
64
|
23
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4944 |
60 |
| Ibiden Co., Ltd. | 1712 |
36 |
| Hollingsworth & Vose Company | 291 |
28 |
| 3m Innovative Properties Company | 17858 |
27 |
| Toray Industries, Inc. | 6930 |
27 |
| LMS Technologies, Inc. | 39 |
22 |
| Corning Incorporated | 10246 |
20 |
| Donaldson Company, Inc. | 1598 |
18 |
| Hitachi Metals, Ltd. | 1985 |
12 |
| DelStar Technologies Inc. | 110 |
12 |
| Parker-Hannifin Corporation | 1033 |
12 |
| SWM Luxembourg | 85 |
10 |
| Toyobo Co., Ltd. | 2485 |
9 |
| LG Electronics Inc. | 72737 |
8 |
| LG Chem, Ltd. | 17594 |
7 |
| FUJIFILM Corporation | 29295 |
7 |
| Entegris, Inc. | 1863 |
7 |
| DDP Specialty Electronic Materials US, LLC | 801 |
7 |
| Samsung Electronics Co., Ltd. | 145025 |
6 |
| Baker Hughes Incorporated | 5277 |
6 |
| Other owners | 617 |