- All sections
- B - Performing operations; transporting
- B63B - Ships or other waterborne vessels; equipment 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: 133
10-year publication summary
|
10
|
10
|
7
|
19
|
19
|
9
|
8
|
12
|
11
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Shipbuilding Co., Ltd. | 136 |
14 |
| Mitsui E&S Shipbuilding Co., Ltd. | 45 |
10 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
7 |
| Daewoo Shipbuilding & Marine Engineering Co., Ltd. | 236 |
6 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
5 |
| Hyundai Heavy Industries Co., Ltd. | 281 |
4 |
| Japan Marine United Corporation | 68 |
4 |
| Lattice Technology Co., Ltd. | 8 |
3 |
| Zodiac Milpro International | 67 |
3 |
| Jurong Shipyard Pte. Ltd. | 36 |
3 |
| Oshima Shipbuilding Co., Ltd. | 18 |
3 |
| Guangzhou Shipyard International Company Limited | 187 |
3 |
| CNGmotive, Inc. | 19 |
2 |
| Gaztransport et Technigaz | 514 |
2 |
| Jahre Group AS | 2 |
2 |
| Mitsui Engineering & Shipbuilding Co., Ltd. | 331 |
2 |
| Wartsila Finland Oy | 740 |
2 |
| Yanmar Co., Ltd. | 1479 |
2 |
| LNT Marine Pte., Ltd. | 7 |
2 |
| Naval Energies | 39 |
2 |
| Other owners | 52 |