- All sections
- B - Performing operationstransporting
- B66D - Capstanswinchestackles, e.g. pulley blockshoists
- B66D 5/28 - Operating devices pneumatic or hydraulic specially adapted for winding gear, e.g. in mining hoists
Patent holdings for IPC class B66D 5/28
Total number of patents in this class: 16
10-year publication summary
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2
|
1
|
1
|
0
|
2
|
2
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0
|
1
|
1
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mhwirth GmbH | 58 |
3 |
| Taiyuan University of Technology | 315 |
2 |
| Honda Motor Co., Ltd. | 26064 |
1 |
| China University of Mining and Technology | 1312 |
1 |
| Inventio AG | 2407 |
1 |
| Kobelco Construction Machinery Co., Ltd. | 1211 |
1 |
| M.A.T. Malmedie Antriebstechnik GmbH | 16 |
1 |
| Nabors Drilling Technologies USA, Inc. | 573 |
1 |
| PINTSCH Bubenzer GmbH | 15 |
1 |
| Serinpet Ltda. Representaciones y Servicios de Petroleos | 9 |
1 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 407 |
1 |
| Hunan Bobang Heavy Industry Co., Ltd. | 1 |
1 |
| Guiyang Plateau Mining Machinery Company Limited | 1 |
1 |
| Other owners | 0 |