- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F15B - Systems acting by means of fluids in general; fluid-pressure actuators, e.g. servomotors; details 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: 111
10-year publication summary
0
|
4
|
10
|
15
|
17
|
19
|
17
|
16
|
18
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hamilton Sundstrand Corporation | 4525 |
7 |
Komatsu Ltd. | 4265 |
7 |
Blue Leaf I.P., Inc. | 2758 |
4 |
HYDAC Technology GmbH | 221 |
4 |
Deere & Company | 6845 |
3 |
Robert Bosch GmbH | 40953 |
3 |
AVL List GmbH | 1232 |
3 |
Yamashin-filter Corp. | 115 |
3 |
Semyungtech Co., Ltd. | 12 |
3 |
Caterpillar Inc. | 8877 |
2 |
Audi AG | 7153 |
2 |
Energy Recovery, Inc. | 168 |
2 |
iwis motorsysteme GmbH & Co. KG | 124 |
2 |
Kubota Corporation | 3054 |
2 |
Nidec Tosok Corporation | 213 |
2 |
Quantum-Si Incorporated | 395 |
2 |
Volkswagen AG | 6966 |
2 |
Volvo Construction Equipment AB | 1172 |
2 |
Thordab Industri Innovation AB | 7 |
2 |
ZF CV Systems Europe BV | 682 |
2 |
Other owners | 52 |