- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 31/04 - Expanding other than provided for in groups , e.g. for making expanded metal
Patent holdings for IPC class B21D 31/04
Total number of patents in this class: 93
10-year publication summary
|
1
|
4
|
8
|
13
|
8
|
6
|
1
|
5
|
3
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Protektorwerk Florenz Maisch GmbH & Co. KG | 93 |
7 |
| Hacanoka GmbH | 14 |
6 |
| Toyota Shatai Kabushiki Kaisha | 439 |
5 |
| The Boeing Company | 19980 |
3 |
| ACS Industries, Inc. | 38 |
3 |
| Fatigue Technology, Inc. | 55 |
3 |
| STG Stanztechnik Gesellschaft mbH & Co. KG | 9 |
3 |
| Apple Inc. | 54300 |
2 |
| Philip Morris Products S.A. | 7501 |
2 |
| Weatherford Technology Holdings, LLC | 2010 |
2 |
| BFC Fahrzeugteile GmbH | 19 |
2 |
| Elfa International AB | 131 |
2 |
| Industrie de Nora S.p.A. | 276 |
2 |
| GRAMMER Interior Components GmbH | 7 |
2 |
| 3m Innovative Properties Company | 17848 |
1 |
| Toyota Motor Corporation | 31311 |
1 |
| Panasonic Corporation | 20188 |
1 |
| Denso Corporation | 24069 |
1 |
| Enventure Global Technology, L.L.C. | 93 |
1 |
| Continental Automotive GmbH | 5019 |
1 |
| Other owners | 43 |