- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 35/01 - Devices for the removal of gas, e.g. air purge systems
Patent holdings for IPC class B01D 35/01
Total number of patents in this class: 32
10-year publication summary
|
2
|
2
|
1
|
3
|
0
|
0
|
1
|
0
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baldwin Filters, Inc. | 241 |
3 |
| Cummins Filtration IP, Inc. | 808 |
2 |
| Donaldson Company, Inc. | 1599 |
2 |
| Hayward Industries, Inc. | 671 |
2 |
| Hewlett-Packard Development Company, L.P. | 25881 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 5651 |
1 |
| AMTROL Inc. | 9 |
1 |
| Audi AG | 7361 |
1 |
| Cummins Emission Solutions, Inc. | 541 |
1 |
| Cummins Filtration Inc. | 194 |
1 |
| Evoqua Water Technologies LLC | 917 |
1 |
| Hengst SE & Co. KG | 23 |
1 |
| Martinrea International Inc. | 28 |
1 |
| Parker Hannifin Manufacturing Limited | 50 |
1 |
| Peerless Mfg. Co. | 9 |
1 |
| Plastic Omnium Advanced Innovation and Research | 335 |
1 |
| RHT Limited | 18 |
1 |
| Rolls-Royce Corporation | 1736 |
1 |
| Saint-Gobain Performance Plastics Corporation | 1036 |
1 |
| Vorsana, Inc. | 25 |
1 |
| Other owners | 7 |