- All sections
- B - Performing operations; transporting
- B66D - Capstans; winches; tackles, e.g. pulley blocks; hoists
- B66D 1/30 - Rope, cable, or chain drums or barrels
Patent holdings for IPC class B66D 1/30
Total number of patents in this class: 159
10-year publication summary
|
17
|
15
|
12
|
15
|
17
|
18
|
6
|
12
|
8
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Liebherr-components Biberach GmbH | 225 |
11 |
| Electronic Theatre Controls, Inc. | 263 |
6 |
| KITO Corporation | 171 |
5 |
| Parkburn Precision Handling Systems Limited | 11 |
5 |
| Cmech (Guangzhou) Ltd. | 50 |
4 |
| Kobelco Construction Machinery Co., Ltd. | 1066 |
4 |
| Konecranes Global Corporation | 490 |
4 |
| Hall Labs, LLC | 169 |
4 |
| Atlas Devices, LLC | 24 |
3 |
| National Oilwell Varco Norway AS | 108 |
3 |
| Samsung Heavy Ind. Co., Ltd. | 239 |
3 |
| Continental Global Material Handling Inc. | 23 |
3 |
| Continental Global Material Handling LLC | 24 |
3 |
| Samsung Electronics Co., Ltd. | 138518 |
2 |
| Schlumberger Canada Limited | 7143 |
2 |
| Schlumberger Technology B.v. | 5064 |
2 |
| Schlumberger Holdings Limited | 2869 |
2 |
| Atlas Elektronik GmbH | 396 |
2 |
| Cameron International Corporation | 1322 |
2 |
| China University of Mining and Technology | 1221 |
2 |
| Other owners | 87 |