- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 51/30 - Folding the circumferential seam
Patent holdings for IPC class B21D 51/30
Total number of patents in this class: 61
10-year publication summary
|
3
|
3
|
4
|
3
|
2
|
7
|
4
|
2
|
5
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyo Seikan Co., Ltd. | 594 |
7 |
| Oktober LLC, DBA Oktober LLC | 12 |
6 |
| Toyo Seikan Group Engineering Co., Ltd. | 14 |
6 |
| Stolle Machinery Company, LLC | 429 |
4 |
| Ferrum Packaging AG | 45 |
4 |
| Ball Corporation | 386 |
2 |
| Daiwa Can Company | 236 |
2 |
| Silgan Containers LLC | 133 |
2 |
| Toyo Seikan Group Holdings, Ltd. | 839 |
2 |
| Xolution GmbH | 21 |
2 |
| Enami Seiki Mfg. Co., Ltd. | 3 |
2 |
| Samsung SDI Co., Ltd. | 8385 |
1 |
| Ardagh MP Group Netherlands B.V. | 64 |
1 |
| CFT S.p.A. | 45 |
1 |
| Crown Packaging Technology, Inc. | 499 |
1 |
| Cummins Filtration Inc. | 195 |
1 |
| Impress Group B.V. | 31 |
1 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
1 |
| Nisshin Steel Co., Ltd. | 394 |
1 |
| Rexam Beverage Can Company | 70 |
1 |
| Other owners | 13 |