- 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: 156
10-year publication summary
|
11
|
11
|
9
|
8
|
9
|
17
|
6
|
6
|
5
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Itrec B.V. | 504 |
18 |
| Kobelco Construction Machinery Co., Ltd. | 1188 |
10 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
8 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 399 |
8 |
| Liebherr-Werk Biberach GmbH | 212 |
6 |
| Palfinger AG | 269 |
4 |
| Tadano Ltd. | 505 |
4 |
| Ems-tech Inc. | 10 |
3 |
| IMO Holding GmbH | 85 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2835 |
3 |
| Liebherr-components Biberach GmbH | 225 |
3 |
| Liebherr-Werk Ehingen GmbH | 193 |
3 |
| XCMG Construction Machinery Co., Ltd. Building Machinery Co. | 6 |
3 |
| Hitachi Construction Machinery Co., Ltd. | 2730 |
2 |
| Caterpillar Inc. | 10180 |
2 |
| Manitowoc Crane Group France SAS | 113 |
2 |
| Parker-Hannifin Corporation | 1017 |
2 |
| Reel | 23 |
2 |
| Sumitomo Heavy Industries, Ltd. | 2043 |
2 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
2 |
| Other owners | 66 |