- 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 1/04 - Accumulators
Patent holdings for IPC class F15B 1/04
Total number of patents in this class: 351
10-year publication summary
|
44
|
17
|
13
|
22
|
31
|
35
|
39
|
41
|
38
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Deere & Company | 8097 |
10 |
| Robert Bosch GmbH | 44160 |
10 |
| HYDAC Technology GmbH | 249 |
10 |
| Caterpillar Inc. | 10267 |
9 |
| Schlumberger Technology Corporation | 11818 |
8 |
| Volvo Construction Equipment AB | 1222 |
6 |
| Sonnax Transmission Company | 79 |
6 |
| Halliburton Energy Services, Inc. | 21338 |
5 |
| Hitachi Construction Machinery Co., Ltd. | 2752 |
5 |
| Eagle Industry Co., Ltd. | 1177 |
5 |
| Quidnet Energy Inc. | 33 |
5 |
| Readi Robust Machine Co., Ltd. | 17 |
5 |
| Hydrostor Inc. | 59 |
4 |
| NxStage Medical, Inc. | 297 |
4 |
| Vanderbilt University | 2022 |
4 |
| Sanctuary Cognitive Systems Corporation | 225 |
4 |
| HD Hyundai Infracore Co., Ltd | 185 |
4 |
| Advanced Suspension Technology LLC | 261 |
4 |
| Hawe Hydraulik SE | 106 |
3 |
| Liebherr-Mining Equipment Colmar SAS | 60 |
3 |
| Other owners | 237 |