- All sections
- G - Physics
- G01J - Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light; colorimetry; radiation pyrometry
- G01J 9/00 - Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
Patent holdings for IPC class G01J 9/00
Total number of patents in this class: 466
10-year publication summary
|
30
|
28
|
37
|
38
|
39
|
33
|
24
|
38
|
26
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamamatsu Photonics K.K. | 4161 |
16 |
| Centre National de La Recherche Scientifique | 9632 |
12 |
| Mitsubishi Electric Corporation | 43934 |
11 |
| ASML Netherlands B.V. | 6816 |
9 |
| The Boeing Company | 19843 |
8 |
| Canon Inc. | 36841 |
8 |
| Wooptix, S.L. | 24 |
8 |
| California Institute of Technology | 3884 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
7 |
| Raytheon Company | 8535 |
6 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 1906 |
6 |
| Sorbonne Universite | 1068 |
6 |
| Aeva, Inc. | 266 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
5 |
| Cymer, LLC | 347 |
5 |
| Nippon Telegraph and Telephone Corporation | 14195 |
5 |
| The Regents of the University of California | 18943 |
4 |
| Hon Hai Precision Industry Co., Ltd. | 4157 |
4 |
| Tsinghua University | 5426 |
4 |
| Imagine Optic | 25 |
4 |
| Other owners | 325 |