- All sections
- B - Performing operationstransporting
- B21K - Making forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels
- B21K 5/20 - Making working faces of dies, either recessed or outstanding
Patent holdings for IPC class B21K 5/20
Total number of patents in this class: 33
10-year publication summary
|
1
|
0
|
2
|
0
|
1
|
1
|
0
|
0
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dayton Progress Corporation | 34 |
3 |
| Bharat Forge Ltd. | 46 |
2 |
| D.G. Weld S.r.l. | 3 |
2 |
| Magna International Inc. | 1203 |
2 |
| Phillips Screw Company | 91 |
2 |
| Safran Aircraft Engines | 6503 |
2 |
| The Boeing Company | 20113 |
1 |
| Centre National de La Recherche Scientifique | 10855 |
1 |
| Hitachi Metals, Ltd. | 1930 |
1 |
| GM Global Technology Operations LLC | 15700 |
1 |
| Corning Incorporated | 10413 |
1 |
| Rolls-Royce PLC | 3177 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1669 |
1 |
| DADCO, Inc. | 54 |
1 |
| Diehl Metall Stiftung & Co. KG | 43 |
1 |
| Highcon Systems Ltd. | 41 |
1 |
| Kinik Company | 30 |
1 |
| Meadville Forging Company | 1 |
1 |
| Nisshin Steel Co., Ltd. | 390 |
1 |
| Rolls-Royce Corporation | 1690 |
1 |
| Other owners | 6 |