- All sections
- A - Human necessities
- A61B - Diagnosissurgeryidentification
- A61B 3/13 - Ophthalmic microscopes
Patent holdings for IPC class A61B 3/13
Total number of patents in this class: 740
10-year publication summary
|
104
|
92
|
58
|
56
|
50
|
69
|
47
|
59
|
53
|
36
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alcon, Inc. | 5911 |
177 |
| Carl Zeiss Meditec AG | 1688 |
74 |
| Magic Leap, Inc. | 3423 |
50 |
| Novartis AG | 10169 |
23 |
| Topcon Corporation | 1212 |
23 |
| Sony Corporation | 30052 |
16 |
| Haag-Streit AG | 89 |
13 |
| Sony Group Corporation | 15978 |
13 |
| Leica Instruments (Singapore) Pte. Ltd. | 261 |
12 |
| Alcon, Inc. | 347 |
11 |
| Kabushiki Kaisha Topcon | 550 |
11 |
| Scanoptix, Inc. | 13 |
11 |
| Nikon Corporation | 7233 |
9 |
| University of Rochester | 1343 |
9 |
| Leica Microsystems CMS GmbH | 1139 |
8 |
| Carl Zeiss AG | 920 |
6 |
| Carl Zeiss Surgical GmbH | 42 |
6 |
| Oculus Surgical, Inc. | 7 |
6 |
| Leica Microsystems NC, Inc. | 69 |
6 |
| Duke University | 3185 |
5 |
| Other owners | 251 |