- All sections
- B - Performing operationstransporting
- B21K - Making forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels
- B21K 21/00 - Making hollow articles not covered by any single one of groups
Patent holdings for IPC class B21K 21/00
Total number of patents in this class: 25
10-year publication summary
|
4
|
0
|
0
|
2
|
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
|
|---|---|---|
| Aubert & Duval | 108 |
4 |
| Safeway Safety Step, LLC | 26 |
2 |
| Sprick GmbH Bielefelder Papier- und Wellpappenwerke & Co. | 128 |
2 |
| SNECMA S.A. | 1149 |
1 |
| Industrial Technology Research Institute | 4955 |
1 |
| Continental Automotive GmbH | 5540 |
1 |
| Kawasaki Heavy Industries, Limited | 1597 |
1 |
| Kennametal Inc. | 1391 |
1 |
| Diamond Innovations, Inc. | 236 |
1 |
| Korea Aerospace Research Institute | 309 |
1 |
| Novelis Inc. | 118 |
1 |
| Ogino Industrial Co., LTD | 2 |
1 |
| Rolls-Royce Deutschland Ltd & Co KG | 800 |
1 |
| Saint Jean Industries | 45 |
1 |
| SEB S.A. | 1609 |
1 |
| Springform Technology Limited | 3 |
1 |
| The Gillette Company LLC | 2554 |
1 |
| C2ft | 1 |
1 |
| KURT-MAYRL-Y-SANCHEZ-JUAREZ, Jose-Antonio | 1 |
1 |
| Serim T&D Co., Ltd. | 5 |
1 |
| Other owners | 0 |