- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 35/15 - Bidirectional working filters
Patent holdings for IPC class B01D 35/15
Total number of patents in this class: 38
10-year publication summary
|
1
|
3
|
5
|
4
|
7
|
6
|
7
|
4
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Spectrum Brands, Inc. | 890 |
8 |
| Caterpillar Inc. | 9558 |
2 |
| Cummins Filtration IP, Inc. | 808 |
2 |
| I.v.a.r. S.p.A. | 75 |
2 |
| Pall Corporation | 336 |
2 |
| Parker Intangibles LLC | 1163 |
2 |
| LG Electronics Inc. | 73210 |
1 |
| Hamilton Sundstrand Corporation | 4888 |
1 |
| Schaeffler Technologies AG & Co. KG | 9897 |
1 |
| Emerson Electric Co. | 546 |
1 |
| Filtran LLC | 26 |
1 |
| IVARS S.p.A. | 15 |
1 |
| KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH | 618 |
1 |
| Parrish Enterprises, Ltd. | 22 |
1 |
| R.b.m. S.p.A. | 54 |
1 |
| Saint-Gobain Performance Plastic Corporation | 3 |
1 |
| Saint-Gobain Performance Plastics Corporation | 1033 |
1 |
| VOXX International Corporation | 225 |
1 |
| Zhejiang Sanhua Co., Ltd. | 40 |
1 |
| Zhejiang Sanhua Intelligent Controls Co., Ltd. | 208 |
1 |
| Other owners | 6 |