- All sections
- G - Physics
- G01R - Measuring electric variables; measuring magnetic variables
- G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
Patent holdings for IPC class G01R 15/20
Total number of patents in this class: 1732
10-year publication summary
|
131
|
122
|
137
|
149
|
173
|
143
|
141
|
159
|
146
|
56
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Allegro Microsystems, LLC | 1206 |
86 |
| Alps Alpine Co., Ltd. | 1831 |
86 |
| Murata Manufacturing Co., Ltd. | 22355 |
80 |
| Infineon Technologies AG | 8189 |
72 |
| Denso Corporation | 23338 |
64 |
| Alps Green Devices Co., Ltd. | 75 |
60 |
| TDK Corporation | 6306 |
41 |
| Asahi Kasei Microdevices Corporation | 461 |
33 |
| Lem International SA | 105 |
32 |
| Hitachi Metals, Ltd. | 2175 |
25 |
| Siemens AG | 24990 |
24 |
| Texas Instruments Incorporated | 19376 |
24 |
| Melexis Technologies SA | 184 |
24 |
| Alps Electric Co., Ltd. | 851 |
23 |
| Robert Bosch GmbH | 40953 |
22 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
22 |
| Yazaki Corporation | 6282 |
21 |
| Mitsubishi Electric Corporation | 43934 |
17 |
| Toshiba Corporation | 12017 |
16 |
| Phoenix Contact GmbH & Co. KG | 2202 |
16 |
| Other owners | 944 |