- All sections
- B - Performing operationstransporting
- B63B - Ships or other waterborne vesselsequipment for shipping
- B63B 21/14 - Hawse-holesHawse-pipesHawse-hole closures
Patent holdings for IPC class B63B 21/14
Total number of patents in this class: 18
10-year publication summary
|
3
|
2
|
2
|
2
|
1
|
0
|
0
|
0
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Warn Industries, Inc. | 200 |
2 |
| Guangzhou Shipyard International Company Limited | 189 |
2 |
| IHI Marine United Inc. | 12 |
1 |
| Nabtesco Corporation | 854 |
1 |
| Technische Universitat Hamburg-harburg | 41 |
1 |
| Tutech Innovation GmbH | 26 |
1 |
| Jiangsu University of Science and Technology | 391 |
1 |
| Montajes, Mantenimientos y Reparaciones de La Bahia, S. L. | 1 |
1 |
| Bestway Marine & Energy Technology Co.,Ltd | 5 |
1 |
| Jiangsu Yangzi Xinfu Shipbuilding Co., Ltd | 8 |
1 |
| Tugpins B.V. | 3 |
1 |
| Nylacast Engineered Products Limited | 11 |
1 |
| Hanwha Ocean Co., Ltd. | 136 |
1 |
| Shanghai Bestway Marine Engineering Design Co., Ltd | 4 |
1 |
| Qidong Henghao Shipbuilding Technology Co., Ltd. | 1 |
1 |
| Tugpins Holland B.V. | 1 |
1 |
| Other owners | 0 |