- 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 21/11 - Projectors with built-in or built-on screen for microfilm reading
Patent holdings for IPC class G03B 21/11
Total number of patents in this class: 9
10-year publication summary
|
3
|
1
|
2
|
2
|
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
|
|---|---|---|
| E-image Data Corporation | 10 |
4 |
| Arovia, Inc. | 14 |
2 |
| Cybercity GmbH | 1 |
1 |
| Digital Check Corporation | 60 |
1 |
| e-ImageData Corp. | 6 |
1 |
| Other owners | 0 |