- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 55/00 - Dynamo-electric machines having windings operating at cryogenic temperatures
Patent holdings for IPC class H02K 55/00
Total number of patents in this class: 159
10-year publication summary
|
12
|
12
|
4
|
9
|
8
|
15
|
11
|
16
|
10
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24518 |
15 |
| GKN Aerospace Services Limited | 141 |
6 |
| Universite de Lorraine | 383 |
6 |
| General Electric Company | 13762 |
5 |
| Ambature, Inc. | 34 |
5 |
| Safran Aircraft Engines | 6271 |
5 |
| Silicon Turbine Systems, Inc. | 12 |
5 |
| General Electric Renovables España, S.L. | 309 |
5 |
| ASML Netherlands B.V. | 7371 |
4 |
| Rolls-Royce PLC | 3088 |
4 |
| Hyundai Heavy Industries Co., Ltd. | 275 |
4 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3974 |
4 |
| SAFRAN S.A. | 614 |
3 |
| Sumitomo Electric Industries, Ltd. | 15443 |
3 |
| Siemens Energy, Inc. | 1688 |
3 |
| Dominion Alternative Energy, LLC | 4 |
3 |
| Kyoto University | 2800 |
3 |
| OSWALD Elektromotoren GmbH | 16 |
3 |
| Zenergy Power GmbH | 20 |
3 |
| Absolut System | 13 |
3 |
| Other owners | 67 |