- All sections
- B - Performing operations; transporting
- B66C - Cranes; load-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 13/20 - Control systems or devices for non-electric drives
Patent holdings for IPC class B66C 13/20
Total number of patents in this class: 120
10-year publication summary
4
|
8
|
15
|
12
|
14
|
9
|
10
|
4
|
6
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Tadano Ltd. | 467 |
14 |
Zoomlion Heavy Industry Science and Technology Co., Ltd. | 344 |
12 |
Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
10 |
Xuzhou Heavy Machinery Co., Ltd. | 87 |
8 |
Sumitomo Heavy Industries Construction Cranes Co., Ltd. | 50 |
5 |
Sany Mobile Cranes Co., Ltd | 68 |
5 |
Kobelco Construction Machinery Co., Ltd. | 1048 |
4 |
Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. | 195 |
3 |
Hunan Sany Intelligent Control Equipment Co., Ltd. | 341 |
3 |
Putzmeister Engineering GmbH | 309 |
3 |
XCMG European Research Center GmbH | 8 |
3 |
Hitachi Sumitomo Heavy Industries Construction Crane Co., Ltd. | 8 |
2 |
Liebherr-components Biberach GmbH | 223 |
2 |
Liebherr-Mining Equipment Colmar SAS | 56 |
2 |
Liebherr-Werk Ehingen GmbH | 181 |
2 |
Schwing GmbH | 107 |
2 |
Tigercat Industries Inc. | 43 |
2 |
Hiab AB | 101 |
2 |
Columbia Insurance Company | 1569 |
1 |
Deere & Company | 6845 |
1 |
Other owners | 34 |