- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 53/20 - Filtering
Patent holdings for IPC class F04B 53/20
Total number of patents in this class: 202
10-year publication summary
|
22
|
9
|
15
|
20
|
28
|
25
|
23
|
19
|
15
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
8 |
| Robert Bosch GmbH | 40953 |
8 |
| Entegris, Inc. | 1736 |
7 |
| Microjet Technology Co., Ltd. | 344 |
6 |
| RPM Industries, LLC | 65 |
5 |
| Weatherford Technology Holdings, LLC | 2135 |
4 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
4 |
| Repligen Corporation | 258 |
4 |
| Screen Holdings Co., Ltd. | 2431 |
4 |
| Flow Control LLC. | 131 |
3 |
| Nippon Oil Pump Co., Ltd. | 28 |
3 |
| Nordson Corporation | 1246 |
3 |
| Qonqave GmbH | 13 |
3 |
| Unico, LLC | 75 |
3 |
| Tokyo Electron Limited | 11599 |
2 |
| Continental Automotive GmbH | 5573 |
2 |
| Aisin AW Co., Ltd. | 2430 |
2 |
| Hamilton Sundstrand Corporation | 4525 |
2 |
| BeijingWest Industries, Co., Ltd. | 141 |
2 |
| CareFusion 303, Inc. | 1975 |
2 |
| Other owners | 125 |