- All sections
- G - Physics
- G03B - Apparatus or arrangements for taking photographs or for projecting or viewing themapparatus or arrangements employing analogous techniques using waves other than optical wavesaccessories therefor
- G03B 27/80 - Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
Patent holdings for IPC class G03B 27/80
Total number of patents in this class: 4
10-year publication summary
|
1
|
0
|
2
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 39960 |
1 |
| Hewlett-Packard Development Company, L.P. | 25881 |
1 |
| Nikon Corporation | 7170 |
1 |
| ASML Holding N.V. | 504 |
1 |
| Other owners | 0 |