- All sections
- B - Performing operationstransporting
- B66D - Capstanswinchestackles, e.g. pulley blockshoists
- B66D 1/44 - Control devices non-automatic pneumatic or hydraulic
Patent holdings for IPC class B66D 1/44
Total number of patents in this class: 64
10-year publication summary
|
10
|
4
|
7
|
5
|
4
|
5
|
3
|
2
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
6 |
| Kobelco Construction Machinery Co., Ltd. | 1206 |
5 |
| Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. | 194 |
4 |
| Tadano Ltd. | 508 |
4 |
| Xuzhou Heavy Machinery Co., Ltd. | 116 |
4 |
| J.D. Neuhaus Holding GmbH & Co. KG | 14 |
2 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2830 |
2 |
| Kobe Steel, Ltd. | 899 |
2 |
| Premier Coil Solutions, Inc. | 73 |
2 |
| Prinoth S.p.A. | 195 |
2 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 405 |
2 |
| XCMG European Research Center GmbH | 9 |
2 |
| Sumitomo Heavy Industries Construction Cranes Co., Ltd. | 58 |
2 |
| Halliburton Energy Services, Inc. | 21306 |
1 |
| Honda Motor Co., Ltd. | 26006 |
1 |
| Eaton Corporation | 1806 |
1 |
| Robert Bosch GmbH | 44094 |
1 |
| Caterpillar Inc. | 10269 |
1 |
| Komatsu Ltd. | 4699 |
1 |
| Comeup Industries Inc. | 34 |
1 |
| Other owners | 18 |