- All sections
- G - Physics
- G01R - Measuring electric variablesmeasuring magnetic variables
- G01R 31/62 - Testing of transformers
Patent holdings for IPC class G01R 31/62
Total number of patents in this class: 346
10-year publication summary
|
1
|
6
|
9
|
15
|
31
|
56
|
47
|
44
|
45
|
46
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omicron Electronics GmbH | 275 |
29 |
| Hitachi Energy Ltd. | 2331 |
23 |
| Ubicquia, Inc. | 182 |
16 |
| Siemens Energy Global GmbH & Co. KG | 3081 |
14 |
| Maschinenfabrik Reinhausen GmbH | 745 |
12 |
| Wuhan University | 384 |
8 |
| Xerox Corporation | 6922 |
7 |
| General Electric Technology GmbH | 1371 |
7 |
| Schweitzer Engineering Laboratories, Inc. | 910 |
7 |
| S&C Electric Company | 185 |
6 |
| Grid20/20, Inc. | 31 |
6 |
| Siemens AG | 24333 |
5 |
| Delta Electronics (Shanghai) Co., Ltd. | 733 |
5 |
| Schneider Electric USA, Inc. | 1316 |
4 |
| Hyperion Sensors Inc. | 9 |
4 |
| E.ON Digital Technology GmbH | 11 |
4 |
| Infineon Technologies AG | 8287 |
3 |
| ABB Schweiz AG | 7178 |
3 |
| AVO Multi-Amp Corporation | 30 |
3 |
| E.ON SE | 137 |
3 |
| Other owners | 177 |