- All sections
- B - Performing operationstransporting
- B63B - Ships or other waterborne vesselsequipment for shipping
- B63B 11/04 - Constructional features of bunkers or ballast tanks, e.g. with elastic walls
Patent holdings for IPC class B63B 11/04
Total number of patents in this class: 184
10-year publication summary
|
7
|
19
|
19
|
9
|
8
|
12
|
11
|
9
|
24
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Shipbuilding Co., Ltd. | 188 |
21 |
| Mitsui E&S Shipbuilding Co., Ltd. | 44 |
11 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3272 |
9 |
| HD Korea Shipbuilding ＆ Offshore Engineering Co., Ltd. | 119 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 9168 |
6 |
| Daewoo Shipbuilding & Marine Engineering Co., Ltd. | 231 |
6 |
| Japan Marine United Corporation | 73 |
6 |
| HD Hyundai Heavy Industries Co., Ltd. | 100 |
6 |
| Hyundai Heavy Industries Co., Ltd. | 270 |
5 |
| Hanwha Ocean Co., Ltd. | 152 |
5 |
| Imabari Shipbuilding Co., Ltd. | 14 |
4 |
| Nihon Shipyard Co.,Ltd. | 8 |
4 |
| HD Hyundai Samho Co., Ltd. | 45 |
4 |
| Gaztransport et Technigaz | 632 |
3 |
| Lattice Technology Co., Ltd. | 8 |
3 |
| Zodiac Milpro International | 70 |
3 |
| Oshima Shipbuilding Co., Ltd. | 19 |
3 |
| Guangzhou Shipyard International Company Limited | 190 |
3 |
| Damen 40 B.V. | 40 |
2 |
| Jahre Group AS | 2 |
2 |
| Other owners | 70 |