- All sections
- B - Performing operationstransporting
- B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls
- B21H 1/04 - Making articles shaped as bodies of revolution discsMaking articles shaped as bodies of revolution disc wheels with rim, e.g. railway wheels
Patent holdings for IPC class B21H 1/04
Total number of patents in this class: 19
10-year publication summary
|
1
|
5
|
0
|
3
|
3
|
2
|
0
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topy Kogyo Kabushiki Kaisha | 109 |
3 |
| Washi Kosan Co., Ltd. | 8 |
2 |
| Nissan Motor Co., Ltd. | 12362 |
1 |
| Central Motor Wheel Co., Ltd. | 91 |
1 |
| CITIC Dicastal CO., LTD | 557 |
1 |
| Gates Corporation | 1181 |
1 |
| Hegenscheidt-MFD GmbH & Co. KG | 71 |
1 |
| Leifeld Metal Spinning AG | 23 |
1 |
| Nihon Spindle Manufacturing Co., Ltd | 77 |
1 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
1 |
| ThyssenKrupp AG | 3208 |
1 |
| ThyssenKrupp Steel Europe AG | 956 |
1 |
| Wf-maschinenbau und Blechformtechnik GmbH & Co. KG | 13 |
1 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3020 |
1 |
| Positec Power Tools (Suzhou) Co., Ltd. (non-small entity) | 208 |
1 |
| Aktsionernoe Obschestvo "evraz Nizhetagilsky Metallurgichesky Kombinat" | 1 |
1 |
| Other owners | 0 |