- 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 11/04 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed
Patent holdings for IPC class F15B 11/04
Total number of patents in this class: 232
10-year publication summary
|
27
|
21
|
22
|
30
|
15
|
21
|
11
|
17
|
11
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Construction Machinery Co., Ltd. | 2498 |
31 |
| SMC Corporation | 1354 |
11 |
| Komatsu Ltd. | 4265 |
10 |
| Caterpillar Inc. | 8877 |
7 |
| Volvo Construction Equipment AB | 1172 |
6 |
| Kayaba Industry Co., Ltd. | 376 |
5 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
4 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
4 |
| Deere & Company | 6845 |
3 |
| Robert Bosch GmbH | 40953 |
3 |
| Kawasaki Heavy Industries, Limited | 1524 |
3 |
| Toyota Industries Corporation | 1010 |
3 |
| Aladdin Engineering and Manufacturing, Inc. | 7 |
3 |
| Danfoss Power Solutions Inc. | 116 |
3 |
| KYB Corporation | 1278 |
3 |
| Nabtesco Corporation | 871 |
3 |
| Norrhydro Oy | 19 |
3 |
| Taguchi Industrial Co., Ltd. | 3 |
3 |
| Danfoss A/S | 1259 |
3 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
3 |
| Other owners | 118 |