- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 22/16 - Spinning over shaping mandrels or formers
Patent holdings for IPC class B21D 22/16
Total number of patents in this class: 209
10-year publication summary
|
19
|
17
|
17
|
14
|
19
|
18
|
18
|
8
|
8
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ThyssenKrupp Steel Europe AG | 954 |
12 |
| Leifeld Metal Spinning AG | 23 |
11 |
| Alfa Laval Corporate AB | 1310 |
9 |
| Nihon Spindle Manufacturing Co., Ltd | 77 |
8 |
| Repkon Machine and Tool Industry and Trade Inc. | 10 |
8 |
| Wf-maschinenbau und Blechformtechnik GmbH & Co. KG | 13 |
8 |
| Winkelmann Powertrain Components GmbH & Co. KG | 22 |
8 |
| Federal-Mogul Valvetrain GmbH | 63 |
7 |
| Victaulic Company | 612 |
6 |
| Topy Kogyo Kabushiki Kaisha | 112 |
5 |
| Accel Performance Group LLC | 87 |
4 |
| Cambridge Enterprise Limited | 1184 |
4 |
| Saint Jean Industries | 43 |
4 |
| South China University of Technology | 1781 |
4 |
| ThyssenKrupp AG | 3279 |
4 |
| Rtx Corporation | 9332 |
4 |
| Leifeld Metal Spinning GmbH | 10 |
3 |
| Wf-maschinenbau U. Blechformtechnik GmbH & Co. KG | 3 |
3 |
| Maxion Wheels Holding GmbH | 51 |
3 |
| Kawasaki Heavy Industries, Limited | 1628 |
2 |
| Other owners | 92 |