- All sections
- B - Performing operationstransporting
- B21J - Forginghammeringpressing metalrivetingforge furnaces
- B21J 13/04 - FramesGuides
Patent holdings for IPC class B21J 13/04
Total number of patents in this class: 38
10-year publication summary
|
5
|
0
|
4
|
2
|
2
|
2
|
6
|
6
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Langenstein & Schemann GmbH | 41 |
4 |
| SMS Group GmbH | 1141 |
3 |
| Standard Lifters, Inc. | 97 |
3 |
| NSK Ltd. | 2807 |
2 |
| Danieli & C. Officine Meccaniche S.p.A. | 715 |
2 |
| John Mezzalingua Associates, LLC | 316 |
2 |
| AIDA Europe GmbH | 8 |
2 |
| SNECMA S.A. | 1148 |
1 |
| Cell Impact AB | 20 |
1 |
| Cosma S.r.l. | 7 |
1 |
| Jilin University | 279 |
1 |
| Liebherr-Aerospace Lindenberg GmbH | 119 |
1 |
| Magna Powertrain GmbH & Co KG | 323 |
1 |
| Nanjing Develop Advanced Manufacturing Co., Ltd. | 12 |
1 |
| Promess, Inc., DBA Promess Incorporated | 8 |
1 |
| Ridge Tool Company | 132 |
1 |
| Steuler Korrosionsschutz Holding GmbH | 38 |
1 |
| System S.p.A. | 49 |
1 |
| Wepuko Pahnke GmbH | 14 |
1 |
| Yamanaka Eng. Co., Ltd. | 3 |
1 |
| Other owners | 7 |