- All sections
- G - Physics
- G01R - Measuring electric variablesmeasuring magnetic variables
- G01R 27/20 - Measuring earth resistanceMeasuring contact resistance of earth connections, e.g. plates
Patent holdings for IPC class G01R 27/20
Total number of patents in this class: 214
10-year publication summary
|
11
|
17
|
15
|
13
|
19
|
17
|
15
|
16
|
21
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omicron Electronics GmbH | 281 |
9 |
| International Business Machines Corporation | 62864 |
6 |
| Fluke Corporation | 1007 |
5 |
| RENAULT s.a.s. | 5366 |
5 |
| Toyota Motor Corporation | 36389 |
4 |
| Infineon Technologies AG | 8427 |
4 |
| Samsung Display Co., Ltd. | 39229 |
3 |
| Siemens AG | 23934 |
3 |
| Robert Bosch GmbH | 44398 |
3 |
| ZTE Corporation | 44331 |
3 |
| Bender GmbH & Co. KG | 135 |
3 |
| San Diego Gas & Electric Company | 64 |
3 |
| HP Indigo B.V. | 529 |
3 |
| Siemens Gamesa Renewable Energy A/S | 1980 |
3 |
| Changxin Memory Technologies, Inc. | 4933 |
3 |
| DYNAenergetics Europe GmbH | 262 |
3 |
| LG Energy Solution, Ltd. | 19725 |
3 |
| Dehn SE | 168 |
3 |
| Illinois Tool Works Inc. | 11902 |
2 |
| Eaton Corporation | 1803 |
2 |
| Other owners | 141 |