- 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: 948
10-year publication summary
|
59
|
52
|
48
|
48
|
63
|
35
|
64
|
23
|
31
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5239 |
57 |
| Hollingsworth & Vose Company | 301 |
31 |
| Ibiden Co., Ltd. | 1667 |
30 |
| Toray Industries, Inc. | 7111 |
29 |
| 3m Innovative Properties Company | 17481 |
28 |
| LMS Technologies, Inc. | 43 |
22 |
| Corning Incorporated | 10510 |
20 |
| Donaldson Company, Inc. | 1607 |
17 |
| Hitachi Metals, Ltd. | 1896 |
12 |
| DelStar Technologies Inc. | 156 |
12 |
| Parker-Hannifin Corporation | 1038 |
11 |
| SWM Luxembourg | 80 |
10 |
| LG Electronics Inc. | 75818 |
9 |
| Mativ Luxembourg | 67 |
9 |
| Toyobo Co., Ltd. | 2539 |
8 |
| FUJIFILM Corporation | 30516 |
7 |
| DDP Specialty Electronic Materials US, LLC | 843 |
7 |
| Samsung Electronics Co., Ltd. | 157946 |
6 |
| Baker Hughes Incorporated | 4927 |
6 |
| Denso Corporation | 25579 |
6 |
| Other owners | 611 |