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  • B - Performing operationstransporting
  • B66D - Capstanswinchestackles, e.g. pulley blockshoists
  • 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: 164

10-year publication summary

17
15
12
15
17
18
8
13
8
4
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Liebherr-components Biberach GmbH
223
11
Electronic Theatre Controls, Inc.
258
6
Konecranes Global Corporation
477
6
Parkburn Precision Handling Systems Limited
9
5
Cmech (Guangzhou) Ltd.
51
4
Kobelco Construction Machinery Co., Ltd.
1137
4
Atlas Devices, LLC
25
3
KITO Corporation
169
3
National Oilwell Varco Norway AS
107
3
Samsung Heavy Ind. Co., Ltd.
238
3
Continental Global Material Handling Inc.
23
3
Continental Global Material Handling LLC
25
3
Samsung Electronics Co., Ltd.
145864
2
Schlumberger Canada Limited
7293
2
Schlumberger Technology B.v.
5166
2
Schlumberger Holdings Limited
2831
2
Thales SA
2337
2
Atlas Elektronik GmbH
397
2
Cameron International Corporation
1332
2
China University of Mining and Technology
1253
2
Other owners 94

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