- 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 4/04 - Polarimeters using electric detection means
Patent holdings for IPC class G01J 4/04
Total number of patents in this class: 418
10-year publication summary
|
39
|
32
|
27
|
36
|
32
|
37
|
41
|
35
|
34
|
22
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| J.A. Woollam Co., Inc. | 163 |
22 |
| Sony Corporation | 31846 |
17 |
| Raytheon Company | 8450 |
11 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 1987 |
8 |
| Samsung Electronics Co., Ltd. | 135388 |
7 |
| Polaris Sensor Technologies, Inc. | 52 |
7 |
| Corning Incorporated | 9975 |
6 |
| President and Fellows of Harvard College | 5838 |
6 |
| Sony Group Corporation | 11641 |
6 |
| Sony Semiconductor Solutions Corporation | 9185 |
5 |
| Advanced Optical Technologies, Inc. | 6 |
5 |
| The Boeing Company | 19784 |
4 |
| Centre National de La Recherche Scientifique | 9814 |
4 |
| FUJIFILM Corporation | 27478 |
4 |
| Nikon Corporation | 7136 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10610 |
4 |
| Hamamatsu Photonics K.K. | 4237 |
4 |
| Arizona Board of Regents on behalf of Arizona State University | 2316 |
4 |
| BAE Systems Information and Electronic Systems Integration Inc. | 1774 |
4 |
| DEKA Products Limited Partnership | 1676 |
4 |
| Other owners | 282 |