- All sections
- B - Performing operationstransporting
- B66C - Cranesload-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 13/28 - Circuits for controlling the lowering of the load by AC motors utilising regenerative braking for controlling descent of heavy loads and having means for preventing rotation of motor in the hoisting direction when load is released
Patent holdings for IPC class B66C 13/28
Total number of patents in this class: 48
10-year publication summary
|
5
|
4
|
2
|
2
|
2
|
5
|
0
|
2
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Konecranes Global Corporation | 488 |
7 |
| Kobelco Construction Machinery Co., Ltd. | 1226 |
5 |
| Energy Vault, Inc. | 98 |
5 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2844 |
3 |
| Kobe Steel, Ltd. | 901 |
2 |
| Liebherr-components Biberach GmbH | 226 |
2 |
| Liebherr-Werk Biberach GmbH | 215 |
2 |
| Mitsui E&S Holdings Co.,Ltd. | 22 |
2 |
| Eaton Corporation | 1803 |
1 |
| Doosan Infracore Co., Ltd. | 308 |
1 |
| Gottwald Port Technology GmbH | 19 |
1 |
| HYDAC Technology GmbH | 247 |
1 |
| Itrec B.V. | 506 |
1 |
| J.D. Neuhaus Holding GmbH & Co. KG | 14 |
1 |
| Kabushiki Kaisha Yaskawa Denki | 1458 |
1 |
| KITO Corporation | 186 |
1 |
| Manitowoc Crane Group France SAS | 113 |
1 |
| Paul Vahle GmbH & Co. KG | 67 |
1 |
| SEW-EURODRIVE GmbH & Co. KG | 2050 |
1 |
| Shenzhen Anshun Energy-saving Technology Development Co., Ltd. | 7 |
1 |
| Other owners | 8 |