- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 39/02 - Loose filtering material, e.g. loose fibres
Patent holdings for IPC class B01D 39/02
Total number of patents in this class: 178
10-year publication summary
|
22
|
14
|
10
|
15
|
14
|
10
|
6
|
5
|
9
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17969 |
11 |
| Split Rock Filter Systems LLC | 11 |
6 |
| Hollingsworth & Vose Company | 284 |
5 |
| PHAM Products LLC | 6 |
5 |
| AAF-McQuay Inc. | 61 |
4 |
| Finetex Ene, Inc. | 26 |
4 |
| Heineken Supply Chain B.V. | 343 |
4 |
| LG Electronics Inc. | 71074 |
3 |
| Kimberly-clark Worldwide, Inc. | 5517 |
3 |
| E. I. du Pont de Nemours and Company | 4249 |
2 |
| Amogreentech Co., Ltd. | 592 |
2 |
| BHA Altair, LLC | 103 |
2 |
| CLARCOR Air Filtration Products, Inc. | 12 |
2 |
| Donaldson Company, Inc. | 1572 |
2 |
| Doosan Heavy Industries & Construction Co., Ltd. | 584 |
2 |
| Ellingson Drainage, Inc. | 12 |
2 |
| Halosource, Inc. | 24 |
2 |
| LMS Technologies, Inc. | 27 |
2 |
| Norgen Biotek Corporation | 31 |
2 |
| Universidad Industrial de Santander | 36 |
2 |
| Other owners | 111 |