- All sections
- G - Physics
- G01J - Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet lightcolorimetryradiation pyrometry
- G01J 9/02 - Measuring optical phase differenceDetermining degree of coherenceMeasuring optical wavelength by interferometric methods
Patent holdings for IPC class G01J 9/02
Total number of patents in this class: 474
10-year publication summary
|
33
|
26
|
47
|
50
|
43
|
40
|
35
|
28
|
31
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 7429 |
15 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10936 |
10 |
| Nikon Corporation | 7206 |
9 |
| Hamamatsu Photonics K.K. | 4441 |
9 |
| The General Hospital Corporation | 4759 |
8 |
| Carl Zeiss SMT GmbH | 3016 |
8 |
| Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences | 136 |
8 |
| ONERA (Office National d'Etudes et de Recherches Aerospatiales) | 78 |
7 |
| Cymer, LLC | 389 |
6 |
| Nippon Telegraph and Telephone Corporation | 17367 |
6 |
| University Court of The University of ST Andrews | 308 |
6 |
| Aeva, Inc. | 315 |
6 |
| Korea Advanced Institute of Science and Technology | 4394 |
5 |
| Osaka University | 3385 |
5 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2382 |
4 |
| STMicroelectronics International N.V. | 3241 |
4 |
| Quantum Valley Ideas Laboratories | 80 |
4 |
| Rapid Phenotyping Pty Ltd | 25 |
4 |
| OpenLight Photonics, Inc | 190 |
4 |
| The Regents of the University of California | 20035 |
3 |
| Other owners | 343 |