- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 26/045 - Closing or sealing means
Patent holdings for IPC class B21D 26/045
Total number of patents in this class: 43
10-year publication summary
|
6
|
6
|
2
|
3
|
2
|
3
|
1
|
4
|
1
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Heavy Industries, Ltd. | 2112 |
13 |
| Belvac Production Machinery, Inc. | 150 |
5 |
| Dalian University of Technology | 1594 |
2 |
| Nippon Steel Corporation | 6871 |
2 |
| Olympus Winter & Ibe GmbH | 716 |
2 |
| ThyssenKrupp Steel Europe AG | 990 |
2 |
| Ford Global Technologies, LLC | 21509 |
1 |
| Rolls-Royce PLC | 3221 |
1 |
| CRIPPA S.p.A. | 11 |
1 |
| Heraeus Medical GmbH | 307 |
1 |
| National Research Council of Canada | 1551 |
1 |
| Norsk Hydro ASA | 247 |
1 |
| POSCO | 2143 |
1 |
| Salzgitter Mannesmann Line Pipe GmbH | 15 |
1 |
| Standard Lifters, Inc. | 98 |
1 |
| ThyssenKrupp Presta Teccenter AG | 227 |
1 |
| Qingdao Scan Equipment Technology Co., Ltd. | 2 |
1 |
| Citadel Casing Solutions, LLC | 33 |
1 |
| Zieta Prozessdesign Sp. z o.o. | 32 |
1 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6117 |
1 |
| Other owners | 3 |