- All sections
- B - Performing operationstransporting
- B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rollingauxiliary operations used in connection with metal-working without essentially removing material
- B21C 3/18 - Making tools by operations not covered by a single other subclassRepairing
Patent holdings for IPC class B21C 3/18
Total number of patents in this class: 7
10-year publication summary
|
0
|
0
|
0
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15321 |
1 |
| Sumitomo Electric Hardmetal Corp. | 1012 |
1 |
| ALCAN Technology & Management Ltd. | 54 |
1 |
| A.L.M.T. Corp. | 225 |
1 |
| Diehl Metall Stiftung & Co. KG | 47 |
1 |
| TRC Services, Inc. | 32 |
1 |
| Admantec AG | 1 |
1 |
| Other owners | 0 |