- All sections
- B - Performing operationstransporting
- B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls
- B21H 5/02 - Making gear wheels with cylindrical outline
Patent holdings for IPC class B21H 5/02
Total number of patents in this class: 99
10-year publication summary
|
9
|
8
|
7
|
9
|
3
|
5
|
7
|
3
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GKN Sinter Metals Holding GmbH | 51 |
7 |
| Miba Sinter Austria GmbH | 100 |
6 |
| Illinois Tool Works Inc. | 11399 |
5 |
| Schaeffler Technologies AG & Co. KG | 9395 |
4 |
| Ernst Grob AG | 22 |
4 |
| ThyssenKrupp Steel Europe AG | 956 |
4 |
| Aisin Seiki Kabushiki Kaisha | 2285 |
3 |
| Kamax Holding GmbH & Co. KG | 146 |
3 |
| Leifeld Metal Spinning AG | 23 |
3 |
| WEBO Werkzeugbau Oberschwaben GmbH | 13 |
3 |
| OSG EX-CELL-O GmbH | 3 |
3 |
| ZF Friedrichshafen AG | 7028 |
2 |
| Ecoroll AG Werkzeugtechnik | 15 |
2 |
| GKN Sinter Metals Engineering GmbH | 115 |
2 |
| MAG IAS GmbH | 82 |
2 |
| Mueller Weingarten AG | 3 |
2 |
| Wf-maschinenbau und Blechformtechnik GmbH & Co. KG | 13 |
2 |
| AWEBA Werkzeugbau GmbH Aue | 5 |
2 |
| Metal Forming & Coining, LLC | 17 |
2 |
| Toyota Motor Corporation | 30455 |
1 |
| Other owners | 37 |