- 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: 193
10-year publication summary
|
16
|
14
|
13
|
13
|
8
|
8
|
20
|
11
|
12
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Lifesciences Corporation | 4920 |
9 |
| NHK Spring Co., Ltd. | 2028 |
6 |
| GWS Tube Forming Solutions Inc. | 11 |
5 |
| Nisshin Steel Co., Ltd. | 381 |
4 |
| Stolle Machinery Company, LLC | 511 |
4 |
| Uniflex-Hydraulik GmbH | 64 |
4 |
| Whitaker Chalk Swindle & Schwartz PLLC | 7 |
4 |
| Hydro Extruded Solutions AS | 55 |
4 |
| Leifeld Metal Spinning AG | 23 |
3 |
| Nippon Steel Corporation | 7098 |
3 |
| ThyssenKrupp AG | 3333 |
3 |
| Webco Industries, Inc. | 37 |
3 |
| Bayerische Motoren Werke Aktiengesellschaft | 15511 |
2 |
| Acclarent, Inc. | 539 |
2 |
| Alcoa Inc. | 250 |
2 |
| Alex Global Technology, Inc. | 19 |
2 |
| Daicel Corporation | 2591 |
2 |
| Ihara Science Corporation | 33 |
2 |
| Innotec Corporation | 55 |
2 |
| Musashi Seimitsu Industry Co., Ltd. | 221 |
2 |
| Other owners | 125 |