- 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 51/34 - Folding the circumferential seam by pressing
Patent holdings for IPC class B21D 51/34
Total number of patents in this class: 14
10-year publication summary
|
1
|
1
|
2
|
1
|
2
|
1
|
1
|
0
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Crown Packaging Technology, Inc. | 494 |
7 |
| Cummins Filtration Inc. | 171 |
1 |
| Ferrum AG | 27 |
1 |
| Stolle Machinery Company, LLC | 367 |
1 |
| Codi Manufacturing, Inc. | 3 |
1 |
| Graphic Packaging International, LLC | 1364 |
1 |
| Glud & Marstrand A/S | 13 |
1 |
| Roland Ruegenberg GmbH | 2 |
1 |
| Other owners | 0 |