- 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 21/044 - Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
Patent holdings for IPC class F15B 21/044
Total number of patents in this class: 102
10-year publication summary
|
0
|
6
|
13
|
19
|
13
|
10
|
13
|
9
|
5
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wolf Tooth Components, LLC | 72 |
6 |
| Robert Bosch GmbH | 43096 |
5 |
| Caterpillar Inc. | 9852 |
4 |
| Schaeffler Technologies AG & Co. KG | 10352 |
4 |
| Woodward, Inc. | 659 |
4 |
| Yamashin-filter Corp. | 130 |
4 |
| ZF CV Systems Europe BV | 794 |
4 |
| Hamilton Sundstrand Corporation | 4956 |
3 |
| Shimano Inc. | 3259 |
3 |
| Safran Landing Systems | 738 |
3 |
| Honda Motor Co., Ltd. | 25784 |
2 |
| Deere & Company | 7767 |
2 |
| Hitachi Construction Machinery Co., Ltd. | 2687 |
2 |
| GM Global Technology Operations LLC | 15401 |
2 |
| Komatsu Ltd. | 4625 |
2 |
| Emerson Process Management Regulator Technologies, Inc. | 383 |
2 |
| HYDAC Technology GmbH | 242 |
2 |
| Kubota Corporation | 4056 |
2 |
| KYB Corporation | 1394 |
2 |
| Schroeder Industries, LLC | 51 |
2 |
| Other owners | 42 |