- All sections
- B - Performing operations; transporting
- B21J - Forging; hammering; pressing metal; riveting; forge furnaces
- B21J 13/02 - Dies or mountings therefor
Patent holdings for IPC class B21J 13/02
Total number of patents in this class: 379
10-year publication summary
|
48
|
32
|
37
|
34
|
30
|
24
|
29
|
25
|
26
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2175 |
33 |
| NTN Corporation | 5008 |
13 |
| NSK Ltd. | 2719 |
8 |
| Nippon Steel Corporation | 5649 |
8 |
| Proterial, Ltd. | 638 |
8 |
| Zhongjuxin Ocean Engineering Equipment Co., Ltd | 12 |
7 |
| Honda Motor Co., Ltd. | 24537 |
6 |
| Showa Denko K.K. | 2539 |
6 |
| Aktiebolaget SKF | 2700 |
6 |
| Magna International Inc. | 1236 |
6 |
| Safran Aircraft Engines | 5739 |
6 |
| Standard Lifters, Inc. | 92 |
6 |
| Enkotec A/S | 27 |
6 |
| Toyota Motor Corporation | 28582 |
5 |
| Cell Impact AB | 18 |
5 |
| NUCAP Industries Inc. | 90 |
5 |
| The Boeing Company | 19843 |
4 |
| NGK Insulators, Ltd. | 4589 |
4 |
| Schuler Pressen GmbH | 145 |
4 |
| Tata Steel Limited | 184 |
4 |
| Other owners | 229 |