- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 21/22 - Stereoscopic arrangements
Patent holdings for IPC class G02B 21/22
Total number of patents in this class: 324
10-year publication summary
|
30
|
38
|
33
|
23
|
26
|
25
|
20
|
17
|
14
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carl Zeiss Meditec AG | 1647 |
58 |
| Leica Instruments (Singapore) Pte. Ltd. | 235 |
16 |
| Nikon Corporation | 7303 |
14 |
| Spiral Therapeutics Inc. | 51 |
14 |
| Alcon, Inc. | 5524 |
10 |
| Carl Zeiss Microscopy GmbH | 1226 |
9 |
| Vision Engineering Limited | 41 |
9 |
| Olympus Corporation | 13094 |
8 |
| Leica Microsystems (Schweiz) AG | 101 |
8 |
| Mitaka Kohki Co., Ltd. | 49 |
8 |
| Sony Corporation | 30787 |
6 |
| Carl Zeiss MicroImaging GmbH | 122 |
5 |
| Koh Young Technology Inc. | 350 |
5 |
| Evident Corporation | 1038 |
5 |
| Novartis AG | 10623 |
4 |
| Carl Zeiss AG | 913 |
4 |
| Carl Zeiss Surgical GmbH | 51 |
4 |
| Intuitive Surgical Operations, Inc. | 4176 |
4 |
| Kabushiki Kaisha Topcon | 576 |
4 |
| Sony Olympus Medical Solutions Inc. | 376 |
4 |
| Other owners | 125 |