- All sections
- B - Performing operations; transporting
- B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls
- B21H 1/06 - Making articles shaped as bodies of revolution rings of restricted axial length
Patent holdings for IPC class B21H 1/06
Total number of patents in this class: 95
10-year publication summary
|
8
|
14
|
12
|
8
|
10
|
6
|
3
|
4
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2175 |
17 |
| SMS Group GmbH | 1029 |
8 |
| Hatebur Umformmaschinen AG | 39 |
4 |
| Schuler Pressen GmbH | 145 |
4 |
| Hitachi Metals MMC Superalloy, Ltd. | 11 |
3 |
| Otto Fuchs KG | 51 |
3 |
| Nippon Institute of Technology | 4 |
3 |
| Forge Pat GmbH | 5 |
3 |
| SNECMA S.A. | 1160 |
2 |
| Toyota Motor Corporation | 28582 |
2 |
| NSK Ltd. | 2719 |
2 |
| Cambridge Enterprise Limited | 1096 |
2 |
| Leifeld Metal Spinning AG | 23 |
2 |
| Mitsubishi Materials Corporation | 2378 |
2 |
| Rothe Erde GmbH | 19 |
2 |
| Safran Aircraft Engines | 5739 |
2 |
| Siempelkamp Maschinen- und Anlagenbau GmbH & Co. KG | 118 |
2 |
| ThyssenKrupp AG | 3086 |
2 |
| ThyssenKrupp Rothe Erde GmbH | 66 |
2 |
| Wuhan University of Technology | 159 |
2 |
| Other owners | 26 |