- All sections
- B - Performing operations; transporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; punching metal
- B21D 51/12 - Making hollow objects characterised by the structure of the objects objects with corrugated walls
Patent holdings for IPC class B21D 51/12
Total number of patents in this class: 20
10-year publication summary
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2
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1
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1
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2
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1
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1
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2
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1
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1
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Greif International Holding B.V. | 104 |
2 |
| Keylex Corporation | 48 |
2 |
| Showa Rasenkan Seisakusho Co., Ltd. | 13 |
2 |
| Tokyo Metropolitan University | 101 |
2 |
| Victaulic Company | 664 |
2 |
| The Boeing Company | 19843 |
1 |
| Contech Engineered Solutions LLC | 208 |
1 |
| Jiaxing Stone Wheel Co., Ltd. | 3 |
1 |
| Lucas Automotive GmbH | 350 |
1 |
| Montebello Packaging | 6 |
1 |
| Neturen Co., Ltd. | 193 |
1 |
| Nippon Steel Corporation | 5649 |
1 |
| Novelis Inc. | 656 |
1 |
| Qinhuangdao North Metal Hose Co., Ltd. | 1 |
1 |
| Benteler Steel/Tube GmbH | 37 |
1 |
| Other owners | 0 |