- All sections
- B - Performing operationstransporting
- B66D - Capstanswinchestackles, e.g. pulley blockshoists
- B66D 1/24 - Power transmissions between power sources and drums or barrels for varying speed, or reversing direction of rotation, of drums or barrels
Patent holdings for IPC class B66D 1/24
Total number of patents in this class: 27
10-year publication summary
|
3
|
3
|
1
|
3
|
1
|
2
|
4
|
2
|
4
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| National Oilwell Varco, L.P. | 1690 |
3 |
| Kinatech, LLC | 4 |
2 |
| Infravision Holdings Pty Ltd | 12 |
2 |
| Schlumberger Technology Corporation | 11522 |
1 |
| Agbotic, Inc. | 10 |
1 |
| Asia Fire Protection Co., Ltd. | 3 |
1 |
| Comeup Industries Inc. | 34 |
1 |
| Daifuku Co., Ltd. | 1063 |
1 |
| Drillform Technical Services Ltd. | 42 |
1 |
| Flytrex Aviation LTD | 28 |
1 |
| Ideal Engineering Inc. | 2 |
1 |
| Kobe Steel, Ltd. | 896 |
1 |
| Kobelco Construction Machinery Co., Ltd. | 1189 |
1 |
| TPI Composites, Inc. | 93 |
1 |
| Zollern GmbH & Co. KG | 26 |
1 |
| Sapelem | 9 |
1 |
| Greenlee Tools, Inc. | 195 |
1 |
| Powerchina Sepco1 Electric Power Construction Co., Ltd. | 76 |
1 |
| Sigma Design and Development, LLC | 2 |
1 |
| Huaneng Power International, Inc. Shanghai Shidongkou First Power Plant | 21 |
1 |
| Other owners | 3 |