- All sections
- G - Physics
- G01R - Measuring electric variablesmeasuring magnetic variables
- G01R 31/309 - Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation of printed or hybrid circuits
Patent holdings for IPC class G01R 31/309
Total number of patents in this class: 56
10-year publication summary
|
6
|
6
|
6
|
2
|
1
|
7
|
3
|
1
|
5
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 61305 |
5 |
| Battelle Memorial Institute | 2492 |
5 |
| Koh Young Technology Inc. | 347 |
4 |
| Xcalipr Corporation | 4 |
3 |
| Applied Materials, Inc. | 18746 |
2 |
| Shenzhen KANA Technology Co., Ltd. | 2 |
2 |
| Siemens AG | 24453 |
1 |
| Toshiba Corporation | 12367 |
1 |
| Ericsson | 21804 |
1 |
| Micron Technology, Inc. | 26264 |
1 |
| Hitachi, Ltd. | 15513 |
1 |
| Siemens Medical Solutions USA, Inc. | 1517 |
1 |
| Juniper Networks, Inc. | 3737 |
1 |
| AGC Glass Europe | 1133 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10931 |
1 |
| Boe Technology Group Co., Ltd. | 41291 |
1 |
| atg Luther & Maelzer GmbH | 17 |
1 |
| Avery Dennison Retail Information Services LLC | 1154 |
1 |
| CheckPoint Technologies, LLC | 7 |
1 |
| CKD Corporation | 455 |
1 |
| Other owners | 21 |