- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 38/18 - Rotary transformers
Patent holdings for IPC class H01F 38/18
Total number of patents in this class: 315
10-year publication summary
|
19
|
9
|
16
|
11
|
17
|
11
|
20
|
32
|
38
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2883 |
33 |
| Safran Electrical & Power | 743 |
22 |
| ZF Friedrichshafen AG | 7238 |
21 |
| Analogic Corporation | 315 |
12 |
| Schaeffler Technologies AG & Co. KG | 10725 |
9 |
| TDK Corporation | 6813 |
8 |
| Schleifring GmbH | 71 |
8 |
| Schleifring und Apparatebau GmbH | 76 |
7 |
| Robert Bosch GmbH | 43631 |
5 |
| Koninklijke Philips Electronics N.V. | 7988 |
5 |
| BorgWarner Inc. | 2582 |
5 |
| Hispano Suiza | 68 |
5 |
| Mitsubishi Electric Engineering Company, Limited | 187 |
5 |
| Safran Aircraft Engines | 6551 |
5 |
| Safran Transmission Systems | 348 |
5 |
| UT-Battelle, LLC | 1493 |
5 |
| Waymo LLC | 3252 |
5 |
| Philips Intellectual Property & Standards GmbH | 1711 |
5 |
| Siemens AG | 24199 |
4 |
| Audi AG | 7480 |
4 |
| Other owners | 137 |