- All sections
- B - Performing operationstransporting
- B66D - Capstanswinchestackles, e.g. pulley blockshoists
- B66D 3/04 - Pulley blocks or like devices in which force is applied to a rope, cable or chain, which passes over one or more pulleys, e.g. to obtain mechanical advantage
Patent holdings for IPC class B66D 3/04
Total number of patents in this class: 181
10-year publication summary
|
12
|
11
|
23
|
17
|
18
|
24
|
16
|
15
|
19
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Manitowoc Crane Group France SAS | 103 |
7 |
| TT Technologies, Inc. | 151 |
6 |
| Grid Training Corporation, DBA Northwest Lineman College | 9 |
5 |
| Harken, Inc. | 51 |
5 |
| Konecranes Global Corporation | 478 |
5 |
| Zedel | 249 |
5 |
| International Safety Components Limited | 19 |
4 |
| Kone Oyj | 2061 |
4 |
| Huawei Technologies Co., Ltd. | 109214 |
3 |
| Liebherr-Werk Biberach GmbH | 197 |
3 |
| Mindling Design Limited | 4 |
3 |
| Schlumberger Technology Corporation | 10512 |
2 |
| 3DP Modelling AS | 2 |
2 |
| Atlas Devices, LLC | 23 |
2 |
| BAE SYSTEMS plc | 2306 |
2 |
| Basecamp Innovations Ltd. | 5 |
2 |
| Conterra, Inc. | 10 |
2 |
| CTB, Inc. | 333 |
2 |
| Fluoron Inc. | 5 |
2 |
| KITO Corporation | 170 |
2 |
| Other owners | 113 |