- 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 28/04 - Centering the work; Positioning the tools
Patent holdings for IPC class B21D 28/04
Total number of patents in this class: 71
10-year publication summary
|
4
|
4
|
7
|
6
|
13
|
4
|
4
|
6
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsui High-tec, Inc. | 265 |
4 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 585 |
4 |
| Ernesto Malvestiti S.p.A. | 14 |
3 |
| Farmer Mold and Machine Works, Inc. | 6 |
3 |
| Dongguan University of Technology | 150 |
2 |
| Groz-Beckert KG | 393 |
2 |
| KUKA Systems North America LLC | 19 |
2 |
| Nippon Steel Corporation | 5649 |
2 |
| Salvagnini Italia S.p.A. | 52 |
2 |
| Soudronic AG | 74 |
2 |
| 3-D Solutions Design Service, LLC | 8 |
2 |
| BEAC Co., Ltd. | 37 |
2 |
| Symbio France | 20 |
2 |
| Panasonic Corporation | 20786 |
1 |
| AIL International Inc. | 65 |
1 |
| Akseli Lahtinen Oy | 1 |
1 |
| Constantia Teich GmbH | 53 |
1 |
| Cosma S.r.l. | 7 |
1 |
| Erich Utsch AG | 48 |
1 |
| Fritz Stepper GmbH & Co. KG | 4 |
1 |
| Other owners | 32 |