- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 30/37 - Collapsible stereoscopes
Patent holdings for IPC class G02B 30/37
Total number of patents in this class: 4
10-year publication summary
|
0
|
1
|
0
|
3
|
2
|
1
|
2
|
0
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 38759 |
1 |
| Hallmark Cards, Incorporated | 337 |
1 |
| Guardian Glass, LLC | 558 |
1 |
| Artizan Photonic Crystal (Shandong) | 4 |
1 |
| Other owners | 0 |