- 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: 158
10-year publication summary
18
|
17
|
15
|
12
|
15
|
17
|
18
|
5
|
12
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Liebherr-components Biberach GmbH | 223 |
10 |
Electronic Theatre Controls, Inc. | 258 |
6 |
KITO Corporation | 166 |
5 |
Parkburn Precision Handling Systems Limited | 11 |
5 |
Hall Labs, LLC | 221 |
5 |
Cmech (Guangzhou) Ltd. | 49 |
4 |
Konecranes Global Corporation | 484 |
4 |
Kobelco Construction Machinery Co., Ltd. | 1048 |
3 |
National Oilwell Varco Norway AS | 109 |
3 |
Samsung Heavy Ind. Co., Ltd. | 240 |
3 |
Continental Global Material Handling Inc. | 23 |
3 |
Continental Global Material Handling LLC | 24 |
3 |
Samsung Electronics Co., Ltd. | 131630 |
2 |
Schlumberger Canada Limited | 6913 |
2 |
Schlumberger Technology B.v. | 4951 |
2 |
Schlumberger Holdings Limited | 2947 |
2 |
Atlas Devices, LLC | 21 |
2 |
Atlas Elektronik GmbH | 395 |
2 |
Cameron International Corporation | 1305 |
2 |
China University of Mining and Technology | 1189 |
2 |
Other owners | 88 |