- All sections
- B - Performing operationstransporting
- B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls
- B21H 1/18 - Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely
Patent holdings for IPC class B21H 1/18
Total number of patents in this class: 43
10-year publication summary
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3
|
5
|
4
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6
|
1
|
3
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0
|
1
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0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Federal-Mogul Valvetrain GmbH | 62 |
4 |
| Hilti Aktiengesellschaft | 3723 |
3 |
| Victaulic Company | 625 |
3 |
| Hitachi Automotive Systems, Ltd. | 3954 |
2 |
| Arno Friedrichs Hartmetall GmbH & Co. KG | 11 |
2 |
| Hegenscheidt-MFD GmbH & Co. KG | 66 |
2 |
| Langenstein & Schemann GmbH | 42 |
2 |
| Leifeld Metal Spinning AG | 23 |
2 |
| Wieland-Werke AG | 359 |
2 |
| SNECMA S.A. | 1145 |
1 |
| Panasonic Corporation | 18658 |
1 |
| Arnold Umformtechnik GmbH & Co. KG | 106 |
1 |
| BenQ Materials Corporation | 171 |
1 |
| Ford-Werke GmbH | 71 |
1 |
| GKN Driveline International GmbH | 143 |
1 |
| ILJIN Steel Corporation | 7 |
1 |
| Kayaba Industry Co., Ltd. | 342 |
1 |
| Kyb-ys Co., Ltd. | 26 |
1 |
| NHK Spring Co., Ltd. | 2018 |
1 |
| Nihon Spindle Manufacturing Co., Ltd | 79 |
1 |
| Other owners | 10 |