- 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 11/024 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
Patent holdings for IPC class F15B 11/024
Total number of patents in this class: 251
10-year publication summary
|
18
|
21
|
23
|
15
|
16
|
16
|
22
|
11
|
15
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Construction Machinery Co., Ltd. | 2749 |
30 |
| Caterpillar Inc. | 10272 |
14 |
| Komatsu Ltd. | 4703 |
14 |
| SMC Corporation | 1385 |
12 |
| Robert Bosch GmbH | 44128 |
11 |
| Kawasaki Heavy Industries, Limited | 1671 |
10 |
| Kobelco Construction Machinery Co., Ltd. | 1207 |
10 |
| KYB Corporation | 1421 |
9 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3245 |
9 |
| Caterpillar SARL | 486 |
7 |
| Volvo Construction Equipment AB | 1223 |
7 |
| Sumitomo Heavy Industries, Ltd. | 2110 |
5 |
| Voith Patent GmbH | 2752 |
4 |
| Deere & Company | 8080 |
3 |
| Kayaba Industry Co., Ltd. | 344 |
3 |
| Komatsu Forest AB | 90 |
3 |
| Nordhydraulic AB | 36 |
3 |
| HD Hyundai Infracore Co., Ltd | 185 |
3 |
| Airbus Operations Limited | 1343 |
2 |
| Danfoss Power Solutions ApS | 147 |
2 |
| Other owners | 90 |