- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 9/04 - Bending tubes using mandrels or the like the mandrel being rigid
Patent holdings for IPC class B21D 9/04
Total number of patents in this class: 31
10-year publication summary
|
1
|
4
|
4
|
4
|
3
|
1
|
3
|
5
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ritchie Engineering Company, Inc. | 37 |
4 |
| Futaba Industrial Co., Ltd. | 338 |
2 |
| L & P Property Management Company | 931 |
2 |
| Nippon Steel Corporation | 6271 |
2 |
| Stelia Aerospace | 32 |
2 |
| Airbus Atlantic | 115 |
2 |
| Samsung Electronics Co., Ltd. | 146534 |
1 |
| General Electric Company | 13808 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8735 |
1 |
| Carrier Corporation | 4297 |
1 |
| Hendrickson USA, L.L.C. | 593 |
1 |
| Hoffmann Neopac AG | 61 |
1 |
| Manufacturing Resources International, Inc. | 511 |
1 |
| Rogue Fabrication, LLC | 22 |
1 |
| Sintokogio, Ltd. | 1164 |
1 |
| Stride Tool, LLC | 52 |
1 |
| Tennine Corporation | 9 |
1 |
| ThyssenKrupp AG | 3290 |
1 |
| ThyssenKrupp Presta AG | 1104 |
1 |
| Titan Company Limited | 58 |
1 |
| Other owners | 3 |