- 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 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
Patent holdings for IPC class F15B 20/00
Total number of patents in this class: 867
10-year publication summary
|
66
|
84
|
84
|
92
|
68
|
46
|
65
|
49
|
39
|
37
|
| 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. | 2771 |
44 |
| Robert Bosch GmbH | 44291 |
29 |
| Fisher Controls International LLC | 1430 |
17 |
| Hamilton Sundstrand Corporation | 5013 |
16 |
| KYB Corporation | 1432 |
16 |
| Volvo Construction Equipment AB | 1224 |
16 |
| Voith Patent GmbH | 2742 |
13 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3282 |
13 |
| Festo SE & Co. KG | 442 |
13 |
| Tadano Ltd. | 512 |
12 |
| Samson Aktiengesellschaft | 277 |
11 |
| SMC Corporation | 1398 |
11 |
| Danfoss A/S | 1447 |
11 |
| Caterpillar Inc. | 10302 |
10 |
| HYDAC Technology GmbH | 247 |
10 |
| Woodward, Inc. | 677 |
10 |
| Komatsu Ltd. | 4770 |
9 |
| Kubota Corporation | 4419 |
9 |
| Deere & Company | 8167 |
8 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4132 |
8 |
| Other owners | 581 |