- All sections
- G - Physics
- G01R - Measuring electric variables; measuring magnetic variables
- G01R 31/308 - Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation
Patent holdings for IPC class G01R 31/308
Total number of patents in this class: 180
10-year publication summary
|
22
|
13
|
14
|
17
|
11
|
21
|
11
|
15
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Femtometrix, Inc. | 40 |
9 |
| TeraView Limited | 34 |
9 |
| Hamamatsu Photonics K.K. | 4161 |
8 |
| KLA-Tencor Corporation | 2574 |
6 |
| Samsung Electronics Co., Ltd. | 131630 |
5 |
| FormFactor, Inc. | 296 |
5 |
| FEI Efa, Inc. | 19 |
5 |
| Beamind | 6 |
5 |
| Tokyo Electron Limited | 11599 |
4 |
| DCG Systems, Inc. | 68 |
4 |
| Orbotech Ltd. | 180 |
4 |
| Nokia Solutions And Networks Oy | 5698 |
3 |
| Photon Dynamics, Inc. | 36 |
3 |
| Siemens AG | 24990 |
2 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
2 |
| Eastman Kodak Company | 3444 |
2 |
| Centre National d'Etudes Spatiales (C.N.E.S.) | 131 |
2 |
| European Aeronautic Defence and Space Company EADS France | 194 |
2 |
| FEI Company | 851 |
2 |
| ROHDE & Schwarz GmbH & Co. KG | 1831 |
2 |
| Other owners | 96 |