- All sections
- G - Physics
- G01R - Measuring electric variablesmeasuring magnetic variables
- G01R 31/389 - Measuring internal impedance, internal conductance or related variables
Patent holdings for IPC class G01R 31/389
Total number of patents in this class: 1733
10-year publication summary
|
17
|
33
|
73
|
134
|
142
|
167
|
223
|
303
|
316
|
230
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Energy Solution, Ltd. | 15251 |
229 |
| Denso Corporation | 24404 |
73 |
| Toyota Motor Corporation | 32681 |
58 |
| Robert Bosch GmbH | 42784 |
33 |
| Nuvoton Technology Corporation Japan | 629 |
29 |
| Samsung Electronics Co., Ltd. | 147334 |
27 |
| GS Yuasa International Ltd. | 2054 |
27 |
| Bayerische Motoren Werke Aktiengesellschaft | 14446 |
25 |
| LG Chem, Ltd. | 17643 |
23 |
| GM Global Technology Operations LLC | 15133 |
22 |
| Honda Motor Co., Ltd. | 25379 |
19 |
| Hyundai Motor Company | 22200 |
19 |
| The Furukawa Electric Co., Ltd. | 3679 |
17 |
| Cirrus Logic International Semiconductor Ltd. | 880 |
17 |
| Furukawa Automotive Systems Inc. | 591 |
17 |
| Samsung SDI Co., Ltd. | 8494 |
16 |
| Toyo System Co., Ltd. | 87 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 31756 |
15 |
| Contemporary Amperex Technology Co., Limited | 7024 |
15 |
| Hioki E.E. Corporation | 137 |
15 |
| Other owners | 1021 |