- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F15B - Systems acting by means of fluids in generalfluid-pressure actuators, e.g. servomotorsdetails of fluid-pressure systems, not otherwise provided for
- F15B 21/041 - Removal or measurement of solid or liquid contamination, e.g. filtering
Patent holdings for IPC class F15B 21/041
Total number of patents in this class: 140
10-year publication summary
|
10
|
15
|
17
|
19
|
17
|
16
|
19
|
13
|
15
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4658 |
9 |
| Hamilton Sundstrand Corporation | 5017 |
8 |
| ZF CV Systems Europe BV | 813 |
6 |
| Deere & Company | 7981 |
5 |
| HYDAC Technology GmbH | 246 |
5 |
| Blue Leaf I.P., Inc. | 2796 |
4 |
| Yamashin-filter Corp. | 130 |
4 |
| Caterpillar Inc. | 10180 |
3 |
| AVL List GmbH | 1327 |
3 |
| Kubota Corporation | 4232 |
3 |
| Quantum-Si Incorporated | 436 |
3 |
| Semyungtech Co., Ltd. | 14 |
3 |
| Robert Bosch GmbH | 43700 |
2 |
| JATCO Ltd | 1323 |
2 |
| ARBURG GmbH + Co. KG | 145 |
2 |
| Audi AG | 7488 |
2 |
| Energy Recovery, Inc. | 188 |
2 |
| iwis motorsysteme GmbH & Co. KG | 112 |
2 |
| Nidec Tosok Corporation | 206 |
2 |
| Volkswagen AG | 7431 |
2 |
| Other owners | 68 |