- 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 51/02 - Making hollow objects characterised by the structure of the objects
Patent holdings for IPC class B21D 51/02
Total number of patents in this class: 34
10-year publication summary
|
2
|
2
|
2
|
2
|
3
|
2
|
2
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Krip LLC | 6 |
4 |
| Belvac Production Machinery, Inc. | 132 |
2 |
| Nippon Steel Corporation | 5649 |
2 |
| Pantero Technologies Inc. | 12 |
2 |
| ThyssenKrupp Steel Europe AG | 924 |
2 |
| Alcoa Warrick LLC | 29 |
2 |
| Rtx Corporation | 8674 |
2 |
| Toyota Motor Corporation | 28582 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| Kia Motors Corporation | 7946 |
1 |
| Bell Helicopter Textron Inc. | 1122 |
1 |
| Boxal France | 1 |
1 |
| Food Equipment Technologies Company, Inc. | 70 |
1 |
| Hyundai Steel Company | 310 |
1 |
| Kanemitsu Corporation | 17 |
1 |
| Modine Manufacturing Company | 305 |
1 |
| Safran Nacelles | 587 |
1 |
| South China University of Technology | 1581 |
1 |
| ThyssenKrupp AG | 3086 |
1 |
| ThyssenKrupp Presta AG | 1069 |
1 |
| Other owners | 5 |