- 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: 583
10-year publication summary
|
42
|
56
|
54
|
62
|
50
|
38
|
36
|
34
|
26
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19510 |
51 |
| Konica Minolta, Inc. | 8784 |
25 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
20 |
| Viavi Solutions Inc. | 1449 |
12 |
| ams AG | 773 |
10 |
| ams Sensors Germany GmbH | 88 |
10 |
| Hamamatsu Photonics K.K. | 4446 |
9 |
| Sony Corporation | 30936 |
8 |
| Olympus Corporation | 13151 |
8 |
| Urugus S.A. | 47 |
8 |
| Koninklijke Philips Electronics N.V. | 9375 |
7 |
| Sony Semiconductor Solutions Corporation | 10599 |
7 |
| Samsung Electronics Co., Ltd. | 147501 |
6 |
| FUJIFILM Corporation | 29543 |
6 |
| Digimarc Corporation | 733 |
6 |
| X-Rite, Inc. | 72 |
6 |
| Ouster, Inc. | 167 |
6 |
| 3Shape A/S | 479 |
6 |
| Apple Inc. | 55387 |
5 |
| The Regents of the University of California | 20059 |
5 |
| Other owners | 362 |