- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 22/12 - Stamping using yieldable or resilient pads using enclosed flexible chambers
Patent holdings for IPC class B21D 22/12
Total number of patents in this class: 16
10-year publication summary
|
3
|
3
|
3
|
0
|
0
|
0
|
1
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Belvac Production Machinery, Inc. | 156 |
5 |
| The Boeing Company | 20048 |
2 |
| Silexcomp Oy | 2 |
2 |
| Canon Inc. | 39765 |
1 |
| GM Global Technology Operations LLC | 15000 |
1 |
| Lapmaster International, LLC | 13 |
1 |
| Spirit AeroSystems, Inc. | 273 |
1 |
| Stolle Machinery Company, LLC | 422 |
1 |
| Sumitomo Heavy Industries, Ltd. | 1926 |
1 |
| Batz, S. Coop. | 17 |
1 |
| Other owners | 0 |