- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 7/18 - Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
Patent holdings for IPC class H01F 7/18
Total number of patents in this class: 646
10-year publication summary
|
41
|
63
|
61
|
61
|
56
|
44
|
34
|
21
|
24
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42742 |
61 |
| Continental Automotive GmbH | 4774 |
19 |
| ZF Friedrichshafen AG | 7166 |
18 |
| Hanchett Entry Systems, Inc. | 284 |
12 |
| Vitesco Technologies GmbH | 2602 |
12 |
| Siemens AG | 24436 |
10 |
| Denso Corporation | 24387 |
10 |
| Raytheon Company | 8385 |
10 |
| Schaeffler Technologies AG & Co. KG | 9955 |
10 |
| ETO Magnetic GmbH | 278 |
10 |
| Hamilton Sundstrand Corporation | 4902 |
9 |
| Capstan Ag Systems, Inc. | 109 |
8 |
| Hitachi Astemo, Ltd. | 6385 |
8 |
| Aisin AW Co., Ltd. | 2324 |
7 |
| Flextronics AP, LLC | 465 |
7 |
| Hitachi Automotive Systems, Ltd. | 3955 |
6 |
| Mitsubishi Electric Corporation | 46295 |
6 |
| Schneider Electric Industries SAS | 1496 |
6 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1401 |
6 |
| GM Global Technology Operations LLC | 15114 |
5 |
| Other owners | 406 |