- All sections
- G - Physics
- G01R - Measuring electric variables; measuring magnetic variables
- G01R 31/62 - Testing of transformers
Patent holdings for IPC class G01R 31/62
Total number of patents in this class: 273
10-year publication summary
|
0
|
10
|
15
|
9
|
16
|
32
|
59
|
50
|
47
|
19
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omicron Electronics GmbH | 259 |
27 |
| Hitachi Energy Ltd. | 1921 |
18 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
11 |
| Maschinenfabrik Reinhausen GmbH | 749 |
10 |
| Wuhan University | 320 |
8 |
| Ubicquia, Inc. | 153 |
8 |
| Xerox Corporation | 7503 |
7 |
| General Electric Technology GmbH | 1657 |
7 |
| Schweitzer Engineering Laboratories, Inc. | 920 |
6 |
| Grid20/20, Inc. | 31 |
6 |
| Siemens AG | 24990 |
4 |
| S&C Electric Company | 172 |
4 |
| Hyperion Sensors Inc. | 9 |
4 |
| E.ON Digital Technology GmbH | 9 |
4 |
| Infineon Technologies AG | 8189 |
3 |
| Delta Electronics (Shanghai) Co., Ltd. | 611 |
3 |
| E.ON SE | 123 |
3 |
| Aurtra Pty Ltd. | 6 |
3 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
2 |
| Hamilton Sundstrand Corporation | 4525 |
2 |
| Other owners | 133 |