- 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: 322
10-year publication summary
|
31
|
40
|
36
|
24
|
26
|
26
|
20
|
17
|
14
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carl Zeiss Meditec AG | 1610 |
58 |
| Leica Instruments (Singapore) Pte. Ltd. | 230 |
17 |
| Nikon Corporation | 7159 |
14 |
| Spiral Therapeutics Inc. | 49 |
14 |
| Olympus Corporation | 13186 |
9 |
| Carl Zeiss Microscopy GmbH | 1202 |
9 |
| Vision Engineering Limited | 42 |
9 |
| Leica Microsystems (Schweiz) AG | 102 |
8 |
| Mitaka Kohki Co., Ltd. | 51 |
8 |
| Alcon, Inc. | 5420 |
7 |
| Sony Corporation | 31080 |
6 |
| Carl Zeiss Surgical GmbH | 59 |
6 |
| Carl Zeiss MicroImaging GmbH | 134 |
5 |
| Koh Young Technology Inc. | 347 |
5 |
| Evident Corporation | 1027 |
5 |
| Novartis AG | 10856 |
4 |
| Carl Zeiss AG | 879 |
4 |
| Intuitive Surgical Operations, Inc. | 4038 |
4 |
| Kabushiki Kaisha Topcon | 585 |
4 |
| Sony Olympus Medical Solutions Inc. | 371 |
4 |
| Other owners | 122 |