- 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 17/30 - Locating spools or other rotatable holders of coiled film
Patent holdings for IPC class G03B 17/30
Total number of patents in this class: 10
10-year publication summary
|
0
|
6
|
2
|
0
|
1
|
1
|
1
|
0
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9047 |
3 |
| Apple Inc. | 55229 |
2 |
| Sony Corporation | 31004 |
1 |
| Bounce Exchange, Inc. | 2 |
1 |
| Connaught Electronics Ltd. | 339 |
1 |
| MCi (Mirror Controls International) Netherlands B.V. | 158 |
1 |
| OM Digital Solutions Corp. | 607 |
1 |
| Other owners | 0 |