- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 53/20 - Filtering
Patent holdings for IPC class F04B 53/20
Total number of patents in this class: 220
10-year publication summary
|
9
|
15
|
20
|
28
|
25
|
23
|
20
|
17
|
17
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73111 |
8 |
| Robert Bosch GmbH | 42684 |
8 |
| Entegris, Inc. | 1869 |
7 |
| Microjet Technology Co., Ltd. | 447 |
6 |
| Repligen Corporation | 284 |
5 |
| RPM Industries, LLC | 69 |
5 |
| Weatherford Technology Holdings, LLC | 2023 |
4 |
| Atlas Copco Airpower, naamloze vennootschap | 1029 |
4 |
| Screen Holdings Co., Ltd. | 2822 |
4 |
| Donaldson Company, Inc. | 1599 |
3 |
| Flow Control LLC. | 132 |
3 |
| Gen-Probe Incorporated | 994 |
3 |
| Nippon Oil Pump Co., Ltd. | 29 |
3 |
| Nordson Corporation | 1197 |
3 |
| Watson-Marlow GmbH | 35 |
3 |
| Qonqave GmbH | 13 |
3 |
| Unico, LLC | 66 |
3 |
| Becton, Dickinson and Company | 7237 |
2 |
| Tokyo Electron Limited | 12733 |
2 |
| Continental Automotive GmbH | 4775 |
2 |
| Other owners | 139 |