- All sections
- H - Electricity
- H01F - Magnets; inductances; transformers; selection of materials for their magnetic properties
- H01F 29/02 - Variable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
Patent holdings for IPC class H01F 29/02
Total number of patents in this class: 183
10-year publication summary
|
11
|
14
|
12
|
15
|
22
|
10
|
13
|
16
|
17
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Maschinenfabrik Reinhausen GmbH | 749 |
23 |
| Hitachi Energy Ltd. | 1921 |
13 |
| Nucurrent, Inc. | 294 |
9 |
| Siemens AG | 24990 |
7 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
7 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
6 |
| ABB Technology AG | 1301 |
5 |
| Toshiba Energy Systems & Solutions Corp. | 954 |
5 |
| Energia Europa S.P.A. | 5 |
4 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| ABB Schweiz AG | 6321 |
3 |
| Hainan Jinpan Smart Technology Co., Ltd. | 14 |
3 |
| Intel Corporation | 45621 |
2 |
| Infineon Technologies AG | 8189 |
2 |
| Infineon Technologies Austria AG | 1954 |
2 |
| Alstom Technology Ltd | 1196 |
2 |
| Hamilton Sundstrand Corporation | 4525 |
2 |
| Realtek Semiconductor Corp. | 3028 |
2 |
| Cilag GmbH International | 5813 |
2 |
| General Electric Technology GmbH | 1657 |
2 |
| Other owners | 79 |