- All sections
- B - Performing operationstransporting
- B66C - Cranesload-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 23/72 - Counterweights or supports for balancing lifting couples
Patent holdings for IPC class B66C 23/72
Total number of patents in this class: 120
10-year publication summary
|
12
|
9
|
8
|
11
|
17
|
8
|
4
|
6
|
7
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Liebherr-Werk Biberach GmbH | 215 |
10 |
| Sany Mobile Cranes Co., Ltd | 77 |
7 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
6 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 404 |
6 |
| Terex Australia Pty. Ltd | 14 |
6 |
| Caterpillar Inc. | 10299 |
5 |
| Liebherr-Werk Ehingen GmbH | 196 |
5 |
| Volvo Construction Equipment AB | 1223 |
4 |
| Wobben Properties GmbH | 1220 |
4 |
| Xuzhou Heavy Machinery Co., Ltd. | 118 |
4 |
| Hunan Sany Intelligent Control Equipment Co., Ltd. | 345 |
3 |
| Sumitomo Heavy Industries Construction Cranes Co., Ltd. | 59 |
3 |
| Chapman/Leonard Studio Equipment, Inc. | 80 |
3 |
| The Boeing Company | 20196 |
2 |
| Caterpillar SARL | 487 |
2 |
| Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. | 194 |
2 |
| Manitowoc Crane Companies, LLC | 180 |
2 |
| Robarts Research Institute | 12 |
2 |
| Hunan Sany Medium Tonnage Hoisting Machinery Co., Ltd. | 32 |
2 |
| Skyrex AB | 26 |
2 |
| Other owners | 40 |