- All sections
- B - Performing operations; transporting
- B66D - Capstans; winches; tackles, e.g. pulley blocks; hoists
- B66D 1/74 - Capstans
Patent holdings for IPC class B66D 1/74
Total number of patents in this class: 216
10-year publication summary
|
15
|
12
|
11
|
20
|
20
|
17
|
22
|
16
|
18
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seldén Mast AB | 26 |
9 |
| Electronic Theatre Controls, Inc. | 258 |
7 |
| Itrec B.V. | 477 |
5 |
| Parkburn Precision Handling Systems Limited | 11 |
5 |
| Pontos | 5 |
5 |
| Sky Climber, LLC | 31 |
5 |
| Skylotec GmbH | 113 |
5 |
| Tractel Greifzug GmbH | 13 |
4 |
| TT Technologies, Inc. | 145 |
4 |
| JENOPTIK Advanced Systems GmbH | 19 |
4 |
| Greenlee Tools, Inc. | 208 |
4 |
| Atlas Devices, LLC | 21 |
3 |
| Elevadores Goian, S.L. | 5 |
3 |
| Harken Italy S.p.A. | 8 |
3 |
| Kite Gen Research S.r.l. | 33 |
3 |
| Reel | 18 |
3 |
| Chrysadev | 6 |
3 |
| Vestas Wind Systems A/S | 3459 |
3 |
| Bailout Systems, Inc. | 3 |
3 |
| VINCORION Advanced Systems GmbH | 36 |
3 |
| Other owners | 132 |