- 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 3/52 - Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
Patent holdings for IPC class G01J 3/52
Total number of patents in this class: 417
10-year publication summary
|
37
|
40
|
45
|
48
|
65
|
34
|
36
|
33
|
40
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 18724 |
26 |
| Konica Minolta, Inc. | 8349 |
25 |
| FUJIFILM Corporation | 27102 |
14 |
| Ricoh Company, Ltd. | 13266 |
12 |
| Datacolor, Inc. | 32 |
12 |
| Hewlett-Packard Development Company, L.P. | 28538 |
9 |
| Dai Nippon Printing Co., Ltd. | 3891 |
8 |
| Canon Inc. | 36841 |
7 |
| Akzo Nobel Coatings International B.V. | 2185 |
6 |
| Dental Monitoring | 131 |
6 |
| Henkel AG & Co. KGaA | 10129 |
5 |
| Axalta Coating Systems IP Co., LLC | 454 |
5 |
| Coatings Foreign IP Co. LLC | 143 |
5 |
| DIC Corporation | 3597 |
5 |
| X-Rite Switzerland GmbH | 65 |
5 |
| ams Sensors Germany GmbH | 71 |
5 |
| Unilever PLC | 3540 |
4 |
| Unilever N.V. | 3440 |
4 |
| NEC Corporation | 32703 |
4 |
| Microsoft Technology Licensing, LLC | 51439 |
4 |
| Other owners | 246 |