- All sections
- B - Performing operationstransporting
- B22D - Casting of metalscasting of other substances by the same processes or devices
- B22D 27/15 - Treating the metal in the mould while it is molten or ductile by using vacuum
Patent holdings for IPC class B22D 27/15
Total number of patents in this class: 69
10-year publication summary
|
18
|
12
|
11
|
11
|
5
|
2
|
2
|
1
|
0
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 55287 |
4 |
| General Electric Company | 13807 |
3 |
| ALD Vacuum Technologies GmbH | 138 |
3 |
| BYD Company Limited | 5064 |
3 |
| Crucible Intellectual Property, LLC | 90 |
3 |
| A. Finkl & Sons Co. | 83 |
2 |
| ATI Properties LLC | 204 |
2 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1543 |
2 |
| Institut Polytechnique de Grenoble | 396 |
2 |
| Korea Institute of Machinery & Materials | 750 |
2 |
| Universite Grenoble Alpes | 731 |
2 |
| SNECMA S.A. | 1148 |
1 |
| GM Global Technology Operations LLC | 15114 |
1 |
| Huawei Technologies Co., Ltd. | 113340 |
1 |
| Nissan Motor Co., Ltd. | 12519 |
1 |
| Bridgestone Corporation | 7231 |
1 |
| Siemens Energy, Inc. | 1712 |
1 |
| Central Iron and Steel Research Institute | 20 |
1 |
| Dalian Jiaotong University | 8 |
1 |
| Danieli & C. Officine Meccaniche S.p.A. | 718 |
1 |
| Other owners | 32 |