- All sections
- B - Performing operationstransporting
- B21J - Forginghammeringpressing metalrivetingforge furnaces
- B21J 3/00 - Lubricating during forging or pressing
Patent holdings for IPC class B21J 3/00
Total number of patents in this class: 82
10-year publication summary
|
3
|
5
|
7
|
5
|
7
|
3
|
4
|
5
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2021 |
9 |
| Nihon Parkerizing Co., Ltd. | 280 |
6 |
| ATI Properties, Inc. | 102 |
5 |
| Biosynthetic Technologies, LLC | 93 |
5 |
| SMS Group GmbH | 1080 |
4 |
| Proterial, Ltd. | 765 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 8538 |
2 |
| Mazda Motor Corporation | 3071 |
2 |
| ATI Properties LLC | 205 |
2 |
| Macoho Co. Ltd. | 14 |
2 |
| Toyota Motor Corporation | 30455 |
1 |
| The Boeing Company | 19911 |
1 |
| Robert Bosch GmbH | 41786 |
1 |
| GM Global Technology Operations LLC | 14260 |
1 |
| Denso Corporation | 23769 |
1 |
| Shimano Inc. | 3162 |
1 |
| NTN Corporation | 4976 |
1 |
| Showa Denko K.K. | 2337 |
1 |
| Masco Corporation | 68 |
1 |
| Henkel AG & Co. KGaA | 10351 |
1 |
| Other owners | 31 |