- All sections
- B - Performing operationstransporting
- B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls
- B21H 1/20 - Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely rolled longitudinally
Patent holdings for IPC class B21H 1/20
Total number of patents in this class: 34
10-year publication summary
|
7
|
2
|
1
|
1
|
2
|
5
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3723 |
4 |
| SMS Group GmbH | 1212 |
4 |
| ThyssenKrupp AG | 3328 |
4 |
| Ernst Grob AG | 17 |
3 |
| ThyssenKrupp Presta AG | 1115 |
3 |
| Krinner Innovation GmbH | 45 |
2 |
| Victaulic Company | 625 |
2 |
| Langenstein & Schemann GmbH | 42 |
1 |
| Leifeld Metal Spinning GmbH | 9 |
1 |
| Mueller Weingarten AG | 2 |
1 |
| Nihon Spindle Manufacturing Co., Ltd | 79 |
1 |
| TE Connectivity Solutions GmbH | 3077 |
1 |
| TransForm Automotive LLC | 10 |
1 |
| Unarco Industries LLC | 27 |
1 |
| United States Steel Corporation | 172 |
1 |
| WEBO Werkzeugbau Oberschwaben GmbH | 11 |
1 |
| Winkelmann Powertrain Components GmbH & Co. KG | 22 |
1 |
| AWEBA Werkzeugbau GmbH Aue | 4 |
1 |
| Hanyoung Machinery | 2 |
1 |
| Other owners | 0 |