- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 41/04 - ReducingClosing
Patent holdings for IPC class B21D 41/04
Total number of patents in this class: 187
10-year publication summary
|
11
|
16
|
14
|
13
|
13
|
8
|
8
|
19
|
10
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Lifesciences Corporation | 4682 |
8 |
| NHK Spring Co., Ltd. | 1852 |
6 |
| GWS Tube Forming Solutions Inc. | 11 |
5 |
| Nisshin Steel Co., Ltd. | 394 |
4 |
| Whitaker Chalk Swindle & Schwartz PLLC | 7 |
4 |
| Leifeld Metal Spinning AG | 23 |
3 |
| Nippon Steel Corporation | 6207 |
3 |
| Stolle Machinery Company, LLC | 421 |
3 |
| ThyssenKrupp AG | 3279 |
3 |
| Uniflex-Hydraulik GmbH | 55 |
3 |
| Webco Industries, Inc. | 32 |
3 |
| Hydro Extruded Solutions AS | 46 |
3 |
| Boston Scientific Scimed, Inc. | 10212 |
2 |
| Bayerische Motoren Werke Aktiengesellschaft | 14278 |
2 |
| Alcoa Inc. | 294 |
2 |
| Alex Global Technology, Inc. | 21 |
2 |
| Daicel Corporation | 2335 |
2 |
| Ihara Science Corporation | 29 |
2 |
| Innotec Corporation | 56 |
2 |
| Krinner Innovation GmbH | 50 |
2 |
| Other owners | 123 |