- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 27/04 - Leading of conductors or axles through casings, e.g. for tap-changing arrangements
Patent holdings for IPC class H01F 27/04
Total number of patents in this class: 276
10-year publication summary
|
26
|
32
|
28
|
25
|
23
|
15
|
13
|
13
|
11
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24199 |
36 |
| Hitachi Energy Ltd. | 2502 |
26 |
| Siemens Energy Global GmbH & Co. KG | 3261 |
13 |
| HSP Hochspannungsgeräte GmbH | 141 |
12 |
| ABB Power Grids Switzerland AG | 212 |
8 |
| ABB Schweiz AG | 7460 |
7 |
| Cisco Technology, Inc. | 22300 |
6 |
| Hitachi Energy Switzerland AG | 299 |
6 |
| Denso Corporation | 25232 |
4 |
| Murata Manufacturing Co., Ltd. | 25552 |
4 |
| Hubbell Incorporated | 3408 |
4 |
| Coilcraft, Incorporated | 33 |
4 |
| FANUC Corporation | 7049 |
4 |
| General Electric Technology GmbH | 1346 |
4 |
| PFISTERER Kontaktsysteme GmbH | 52 |
4 |
| ABB Technology Ltd | 442 |
4 |
| LG Electronics Inc. | 75045 |
3 |
| Mitsubishi Electric Corporation | 47625 |
3 |
| ABB Technology AG | 1233 |
3 |
| Shanghai United Imaging Healthcare Co., Ltd. | 2065 |
3 |
| Other owners | 118 |