- All sections
- B - Performing operationstransporting
- B21K - Making forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels
- B21K 25/00 - Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
Patent holdings for IPC class B21K 25/00
Total number of patents in this class: 273
10-year publication summary
|
16
|
17
|
25
|
15
|
14
|
7
|
5
|
5
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 4843 |
14 |
| Safran Aircraft Engines | 6329 |
13 |
| NSK Ltd. | 2799 |
11 |
| GE Infrastructure Technology, LLC | 6201 |
10 |
| Rtx Corporation | 9495 |
9 |
| Bayerische Motoren Werke Aktiengesellschaft | 14535 |
8 |
| Aktiebolaget SKF | 2999 |
8 |
| Robert Bosch GmbH | 42861 |
6 |
| General Electric Company | 13856 |
5 |
| Rolls-Royce PLC | 3138 |
5 |
| Tox PRESSOTECHNIK GmbH & Co. KG | 68 |
5 |
| Schaeffler Technologies AG & Co. KG | 10056 |
4 |
| Toyota Motor Corporation | 33077 |
3 |
| EJOT GmbH & Co. KG | 94 |
3 |
| GLBS Patentverwertungsgesellschaft GbR | 4 |
3 |
| Honeywell Federal Manufacturing & Technologies, LLC | 318 |
3 |
| Siemens AG | 24346 |
2 |
| Honeywell International Inc. | 13557 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8823 |
2 |
| Toshiba Corporation | 12514 |
2 |
| Other owners | 155 |