- All sections
- B - Performing operationstransporting
- B66C - Cranesload-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 23/84 - Slewing gear
Patent holdings for IPC class B66C 23/84
Total number of patents in this class: 154
10-year publication summary
|
11
|
11
|
11
|
9
|
8
|
9
|
17
|
6
|
6
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Itrec B.V. | 502 |
16 |
| Kobelco Construction Machinery Co., Ltd. | 1128 |
10 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
8 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 369 |
8 |
| Liebherr-Werk Biberach GmbH | 201 |
7 |
| Tadano Ltd. | 492 |
4 |
| Ems-tech Inc. | 10 |
3 |
| IMO Holding GmbH | 85 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2863 |
3 |
| Kobelco Cranes Co., Ltd. | 32 |
3 |
| Liebherr-components Biberach GmbH | 223 |
3 |
| Palfinger AG | 226 |
3 |
| XCMG Construction Machinery Co., Ltd. Building Machinery Co. | 5 |
3 |
| Hitachi Construction Machinery Co., Ltd. | 2617 |
2 |
| Caterpillar Inc. | 9417 |
2 |
| Liebherr-Werk Ehingen GmbH | 186 |
2 |
| Manitowoc Crane Group France SAS | 104 |
2 |
| Parker-Hannifin Corporation | 1028 |
2 |
| Reel | 20 |
2 |
| Sumitomo Heavy Industries, Ltd. | 1855 |
2 |
| Other owners | 66 |