- All sections
- B - Performing operationstransporting
- B21J - Forginghammeringpressing metalrivetingforge furnaces
- B21J 9/20 - Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
Patent holdings for IPC class B21J 9/20
Total number of patents in this class: 33
10-year publication summary
|
6
|
4
|
5
|
2
|
2
|
2
|
1
|
3
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SMS Group GmbH | 1113 |
7 |
| Felss Systems GmbH | 17 |
3 |
| Langenstein & Schemann GmbH | 42 |
3 |
| NSK Ltd. | 2767 |
2 |
| Cell Impact AB | 20 |
2 |
| Hoden Seimitsu Kako Kenkyusho Co., Ltd. | 41 |
2 |
| Ningbo Texoon Brassworks Co.,Ltd | 7 |
2 |
| The Boeing Company | 20025 |
1 |
| Ethicon, Inc. | 1194 |
1 |
| The Minster Machine Company | 17 |
1 |
| Sumitomo Heavy Industries, Ltd. | 1881 |
1 |
| Toyota Motor Engineering & Manufacturing North America, Inc. | 1630 |
1 |
| NOVARES France | 140 |
1 |
| Fras-le S.A. | 24 |
1 |
| Brighton Equipment Corporation Limited | 2 |
1 |
| Tusas- Turk Havacilik ve Uzay Sanayii Anonim Sirketi | 272 |
1 |
| Nantong Metalforming Equipment Co., Ltd. | 2 |
1 |
| Nanomade Lab | 14 |
1 |
| JANOME Corporation | 268 |
1 |
| Other owners | 0 |