- All sections
- G - Physics
- G01J - Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet lightcolorimetryradiation pyrometry
- G01J 3/51 - Measurement of colourColour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
Patent holdings for IPC class G01J 3/51
Total number of patents in this class: 580
10-year publication summary
|
60
|
59
|
62
|
51
|
38
|
36
|
34
|
27
|
27
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20022 |
51 |
| Konica Minolta, Inc. | 9040 |
27 |
| Panasonic Intellectual Property Management Co., Ltd. | 33634 |
20 |
| Viavi Solutions Inc. | 1510 |
13 |
| Hamamatsu Photonics K.K. | 4613 |
10 |
| ams AG | 757 |
10 |
| ams Sensors Germany GmbH | 89 |
10 |
| Sony Corporation | 30368 |
8 |
| Olympus Corporation | 13003 |
8 |
| Urugus S.A. | 47 |
8 |
| Sony Semiconductor Solutions Corporation | 11281 |
7 |
| Ouster, Inc. | 169 |
7 |
| FUJIFILM Corporation | 30294 |
6 |
| Digimarc Corporation | 722 |
6 |
| X-Rite, Inc. | 68 |
6 |
| 3Shape A/S | 527 |
6 |
| Samsung Electronics Co., Ltd. | 154406 |
5 |
| Apple Inc. | 58181 |
5 |
| The Regents of the University of California | 20574 |
5 |
| Xerox Corporation | 4713 |
5 |
| Other owners | 357 |