- 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 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: 101
10-year publication summary
|
5
|
1
|
4
|
8
|
13
|
8
|
6
|
1
|
5
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Protektorwerk Florenz Maisch GmbH & Co. KG | 82 |
8 |
| Hacanoka GmbH | 12 |
6 |
| Toyota Shatai Kabushiki Kaisha | 442 |
5 |
| Weatherford Technology Holdings, LLC | 2135 |
4 |
| The Boeing Company | 19843 |
3 |
| ACS Industries, Inc. | 34 |
3 |
| Fatigue Technology, Inc. | 59 |
3 |
| Apple Inc. | 50209 |
2 |
| Philip Morris Products S.A. | 6751 |
2 |
| Shell Canada Limited | 139 |
2 |
| BFC Fahrzeugteile GmbH | 17 |
2 |
| Brembana & Rolle S.p.A. | 12 |
2 |
| Industrie de Nora S.p.A. | 274 |
2 |
| Osaka Gas Co., Ltd. | 312 |
2 |
| Sorst Streckmetall GmbH | 2 |
2 |
| GRAMMER Interior Components GmbH | 8 |
2 |
| LEKKAKIS, Petros | 2 |
2 |
| VILARDI, Nunziatini | 2 |
2 |
| 3m Innovative Properties Company | 18406 |
1 |
| Toyota Motor Corporation | 28582 |
1 |
| Other owners | 45 |