- All sections
- B - Performing operations; transporting
- 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: 427
10-year publication summary
|
31
|
32
|
23
|
27
|
25
|
28
|
16
|
32
|
16
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4589 |
71 |
| Ibiden Co., Ltd. | 1724 |
35 |
| Corning Incorporated | 9932 |
33 |
| Hitachi Metals, Ltd. | 2175 |
13 |
| EP Minerals, LLC | 97 |
6 |
| Hollingsworth & Vose Company | 274 |
6 |
| MANN+HUMMEL GmbH | 1682 |
6 |
| Imerys Filtration Minerals, Inc. | 64 |
5 |
| Imerys USA, Inc. | 135 |
5 |
| Excel Corporate Holdings Limited | 5 |
5 |
| Toyota Motor Corporation | 28582 |
4 |
| Ai Cure Technologies LLC | 35 |
4 |
| Donaldson Company, Inc. | 1513 |
4 |
| Continental Emitec GmbH | 49 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
3 |
| GM Global Technology Operations LLC | 13620 |
3 |
| Lawrence Livermore National Security, LLC | 1834 |
3 |
| Asama Coldwater Manufacturing Inc. | 3 |
3 |
| Cummins Filtration IP, Inc. | 812 |
3 |
| Höganäs AB | 337 |
3 |
| Other owners | 208 |