- All sections
- G - Physics
- G01R - Measuring electric variables; measuring magnetic variables
- G01R 15/24 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
Patent holdings for IPC class G01R 15/24
Total number of patents in this class: 348
10-year publication summary
|
32
|
30
|
29
|
25
|
18
|
19
|
18
|
19
|
25
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Energy Ltd. | 1921 |
17 |
| ABB Research Ltd. | 953 |
16 |
| Micatu Inc. | 48 |
15 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
12 |
| Siemens AG | 24990 |
10 |
| Hitachi, Ltd. | 16452 |
10 |
| ABB Schweiz AG | 6321 |
9 |
| The Tokyo Electric Power Company, Incorporated | 95 |
8 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 1583 |
6 |
| The University of Tokyo | 3903 |
6 |
| Adamant Namiki Precision Jewel Co., Ltd. | 100 |
6 |
| General Electric Company | 18133 |
5 |
| Alstom Technology Ltd | 1196 |
5 |
| ABB Technology AG | 1301 |
5 |
| citizen Finedevice Co., Ltd. | 59 |
5 |
| citizen Watch Co., Ltd. | 1062 |
5 |
| Lumiker Aplicaciones Tecnologicas S.L. | 8 |
5 |
| Shinshu University | 445 |
4 |
| Powersense A/S | 5 |
4 |
| Toko Electric Corporation | 4 |
4 |
| Other owners | 191 |