- 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 53/18 - Making other particular articles rings, e.g. barrel hoops of hollow or C-shaped cross-section, e.g. for curtains, for eyelets
Patent holdings for IPC class B21D 53/18
Total number of patents in this class: 12
10-year publication summary
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0
|
2
|
1
|
2
|
1
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0
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0
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0
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0
|
0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Performance Plastics Rencol Limited | 92 |
2 |
| General Electric Company | 18133 |
1 |
| Carl Freudenberg KG | 1346 |
1 |
| Elpatronic AG | 4 |
1 |
| ElringKlinger AG | 487 |
1 |
| Hugo Benzing GmbH & Co. KG | 23 |
1 |
| Newfrey LLC | 554 |
1 |
| NHK Spring Co., Ltd. | 1657 |
1 |
| Otto Bihler Maschinenfabrik GmbH & Co. KG | 10 |
1 |
| Siemens Healthineers AG | 5714 |
1 |
| Nippon Pop Rivets and Fasteners Ltd. | 30 |
1 |
| Other owners | 0 |