- 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 51/32 - Folding the circumferential seam by rolling
Patent holdings for IPC class B21D 51/32
Total number of patents in this class: 79
10-year publication summary
|
3
|
6
|
7
|
8
|
4
|
9
|
11
|
4
|
12
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ferrum Packaging AG | 44 |
22 |
| Crown Packaging Technology, Inc. | 502 |
8 |
| Oktober LLC, DBA Oktober LLC | 12 |
7 |
| CFT Packaging S.p.A. | 6 |
3 |
| Tremark | 5 |
3 |
| Brasilata S.A. Embalagens Metalicas | 29 |
2 |
| Norland International Inc. | 5 |
2 |
| Upland Technologies Inc. | 3 |
2 |
| Codi Manufacturing, Inc. | 3 |
2 |
| Toyo Seikan Group Engineering Co., Ltd. | 14 |
2 |
| LG Energy Solution, Ltd. | 12838 |
2 |
| CFT S.p.A. | 42 |
1 |
| Cummins Filtration Inc. | 187 |
1 |
| Exal Corporation | 31 |
1 |
| N2 Packaging Systems, LLC | 17 |
1 |
| Rexam Beverage Can Company | 80 |
1 |
| Silgan Containers LLC | 139 |
1 |
| Soudronic AG | 71 |
1 |
| Stolle Machinery Company, LLC | 402 |
1 |
| Toyo Seikan Co., Ltd. | 562 |
1 |
| Other owners | 15 |