- 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: 471
10-year publication summary
|
33
|
27
|
49
|
52
|
43
|
41
|
35
|
28
|
31
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 7371 |
15 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10928 |
10 |
| Nikon Corporation | 7159 |
9 |
| Hamamatsu Photonics K.K. | 4411 |
9 |
| The General Hospital Corporation | 4724 |
8 |
| Carl Zeiss SMT GmbH | 2973 |
8 |
| Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences | 134 |
8 |
| ONERA (Office National d'Etudes et de Recherches Aerospatiales) | 79 |
7 |
| Cymer, LLC | 384 |
6 |
| Nippon Telegraph and Telephone Corporation | 17303 |
6 |
| University Court of The University of ST Andrews | 307 |
6 |
| Aeva, Inc. | 311 |
6 |
| Osaka University | 3375 |
5 |
| Korea Advanced Institute of Science and Technology | 4368 |
4 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2375 |
4 |
| STMicroelectronics International N.V. | 3148 |
4 |
| Quantum Valley Ideas Laboratories | 79 |
4 |
| Rapid Phenotyping Pty Ltd | 25 |
4 |
| OpenLight Photonics, Inc | 190 |
4 |
| The Regents of the University of California | 19887 |
3 |
| Other owners | 341 |