- 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: 320
10-year publication summary
|
19
|
9
|
16
|
11
|
17
|
11
|
20
|
32
|
38
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2911 |
34 |
| ZF Friedrichshafen AG | 7238 |
22 |
| Safran Electrical & Power | 770 |
22 |
| Analogic Corporation | 311 |
12 |
| Schaeffler Technologies AG & Co. KG | 10968 |
9 |
| TDK Corporation | 6858 |
8 |
| Schleifring GmbH | 71 |
8 |
| Schleifring und Apparatebau GmbH | 76 |
7 |
| Robert Bosch GmbH | 44160 |
5 |
| Koninklijke Philips Electronics N.V. | 7455 |
5 |
| BorgWarner Inc. | 2583 |
5 |
| Hispano Suiza | 66 |
5 |
| Mitsubishi Electric Engineering Company, Limited | 190 |
5 |
| Safran Aircraft Engines | 6694 |
5 |
| Safran Transmission Systems | 374 |
5 |
| UT-Battelle, LLC | 1512 |
5 |
| Waymo LLC | 3310 |
5 |
| Philips Intellectual Property & Standards GmbH | 1631 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
4 |
| Audi AG | 7563 |
4 |
| Other owners | 140 |