- All sections
- G - Physics
- G01R - Measuring electric variablesmeasuring magnetic variables
- G01R 31/42 - AC power supplies
Patent holdings for IPC class G01R 31/42
Total number of patents in this class: 559
10-year publication summary
|
56
|
55
|
56
|
49
|
54
|
25
|
48
|
21
|
28
|
24
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SMA Solar Technology AG | 888 |
17 |
| Rockwell Automation Technologies, Inc. | 2725 |
16 |
| Siemens AG | 24350 |
12 |
| ABB Schweiz AG | 7096 |
12 |
| Mitsubishi Electric Corporation | 46672 |
11 |
| Eaton Intelligent Power Limited | 6043 |
11 |
| Fuji Electric Co., Ltd. | 5229 |
10 |
| Denso Corporation | 24601 |
8 |
| Lsis Co., Ltd. | 816 |
8 |
| Tatsumi Ryoki Co., Ltd | 100 |
8 |
| TMEIC Corporation | 799 |
8 |
| Texas Instruments Incorporated | 19459 |
7 |
| Robert Bosch GmbH | 42887 |
7 |
| Hyundai Motor Company | 22533 |
7 |
| Fronius International GmbH | 676 |
7 |
| Grid20/20, Inc. | 31 |
7 |
| Toyota Motor Corporation | 33138 |
6 |
| Infineon Technologies Austria AG | 2197 |
6 |
| Deere & Company | 7688 |
5 |
| Infineon Technologies AG | 8266 |
5 |
| Other owners | 381 |