- All sections
- G - Physics
- G01J - Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet lightcolorimetryradiation pyrometry
- G01J 3/52 - Measurement of colourColour measuring devices, e.g. colorimeters using colour charts
Patent holdings for IPC class G01J 3/52
Total number of patents in this class: 459
10-year publication summary
|
45
|
48
|
65
|
34
|
36
|
34
|
41
|
19
|
25
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20256 |
34 |
| Konica Minolta, Inc. | 9119 |
27 |
| FUJIFILM Corporation | 30514 |
16 |
| Canon Inc. | 43817 |
14 |
| Ricoh Company, Ltd. | 13342 |
13 |
| Datacolor, Inc. | 39 |
12 |
| Hewlett-Packard Development Company, L.P. | 25184 |
9 |
| Dai Nippon Printing Co., Ltd. | 4238 |
9 |
| Henkel AG & Co. KGaA | 10770 |
6 |
| Akzo Nobel Coatings International B.V. | 2038 |
6 |
| Axalta Coating Systems IP Co., LLC | 474 |
6 |
| Dental Monitoring | 164 |
6 |
| NEC Corporation | 37004 |
5 |
| PPG Industries Ohio, Inc. | 3332 |
5 |
| Coatings Foreign IP Co. LLC | 96 |
5 |
| KCC Corporation | 348 |
5 |
| X-Rite Switzerland GmbH | 46 |
5 |
| Healthy.io Ltd | 81 |
5 |
| ams Sensors Germany GmbH | 95 |
5 |
| Unilever PLC | 2999 |
4 |
| Other owners | 262 |