- 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: 648
10-year publication summary
|
63
|
64
|
66
|
60
|
45
|
36
|
21
|
26
|
16
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 43646 |
59 |
| Continental Automotive GmbH | 4613 |
19 |
| ZF Friedrichshafen AG | 7225 |
18 |
| Schaeffler Technologies AG & Co. KG | 10741 |
12 |
| Hanchett Entry Systems, Inc. | 289 |
12 |
| Vitesco Technologies GmbH | 2404 |
11 |
| Siemens AG | 24189 |
10 |
| Denso Corporation | 25261 |
10 |
| Raytheon Company | 8465 |
10 |
| ETO Magnetic GmbH | 282 |
10 |
| Hamilton Sundstrand Corporation | 5019 |
9 |
| Capstan Ag Systems, Inc. | 107 |
9 |
| Hitachi Astemo, Ltd. | 6408 |
9 |
| Aisin AW Co., Ltd. | 2274 |
7 |
| Eaton Intelligent Power Limited | 6170 |
7 |
| Hitachi Automotive Systems, Ltd. | 3954 |
6 |
| Mitsubishi Electric Corporation | 47655 |
6 |
| Schneider Electric Industries SAS | 1563 |
6 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1363 |
6 |
| GM Global Technology Operations LLC | 15864 |
5 |
| Other owners | 407 |