- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 39/06 - Inorganic material, e.g. asbestos fibres, glass beads or fibres
Patent holdings for IPC class B01D 39/06
Total number of patents in this class: 426
10-year publication summary
|
23
|
27
|
25
|
28
|
16
|
32
|
16
|
24
|
13
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5174 |
61 |
| Corning Incorporated | 10538 |
31 |
| Ibiden Co., Ltd. | 1680 |
28 |
| SK Innovation Co., Ltd. | 1496 |
13 |
| Mirai Casting America Inc. | 87 |
11 |
| SK Geo Centric Co., Ltd. | 276 |
8 |
| EP Minerals, LLC | 90 |
6 |
| Hollingsworth & Vose Company | 301 |
6 |
| Imerys Filtration Minerals, Inc. | 68 |
5 |
| Imerys USA, Inc. | 137 |
5 |
| MANN+HUMMEL GmbH | 1814 |
5 |
| Excel Corporate Holdings Limited | 5 |
5 |
| Toyota Motor Corporation | 36159 |
4 |
| Donaldson Company, Inc. | 1607 |
4 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1866 |
4 |
| Standard H2, Inc. | 26 |
4 |
| Aicure Corporation | 91 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
3 |
| GM Global Technology Operations LLC | 16232 |
3 |
| Lawrence Livermore National Security, LLC | 1983 |
3 |
| Other owners | 213 |