- 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: 231
10-year publication summary
|
15
|
20
|
28
|
25
|
23
|
20
|
17
|
19
|
16
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75694 |
8 |
| Robert Bosch GmbH | 44160 |
8 |
| Entegris, Inc. | 2008 |
7 |
| Microjet Technology Co., Ltd. | 461 |
6 |
| RPM Industries, LLC | 80 |
6 |
| Repligen Corporation | 297 |
5 |
| Weatherford Technology Holdings, LLC | 2155 |
4 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
4 |
| Screen Holdings Co., Ltd. | 3158 |
4 |
| Hamilton Sundstrand Corporation | 5015 |
3 |
| Donaldson Company, Inc. | 1600 |
3 |
| Flow Control LLC. | 145 |
3 |
| Gen-Probe Incorporated | 1039 |
3 |
| Nippon Oil Pump Co., Ltd. | 29 |
3 |
| Nordson Corporation | 1201 |
3 |
| Watson-Marlow GmbH | 35 |
3 |
| Qonqave GmbH | 13 |
3 |
| Unico, LLC | 63 |
3 |
| Bill Spitzer & Associates | 3 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
2 |
| Other owners | 147 |