- 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: 681
10-year publication summary
|
59
|
97
|
81
|
54
|
56
|
45
|
60
|
42
|
45
|
36
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alcon, Inc. | 5476 |
137 |
| Carl Zeiss Meditec AG | 1629 |
74 |
| Magic Leap, Inc. | 3291 |
49 |
| Novartis AG | 10725 |
23 |
| Topcon Corporation | 1092 |
19 |
| Sony Corporation | 30929 |
16 |
| Haag-Streit AG | 85 |
13 |
| Sony Group Corporation | 14138 |
13 |
| Leica Instruments (Singapore) Pte. Ltd. | 231 |
12 |
| Kabushiki Kaisha Topcon | 582 |
11 |
| Scanoptix, Inc. | 13 |
11 |
| Alcon, Inc. | 356 |
10 |
| Nikon Corporation | 7265 |
9 |
| University of Rochester | 1315 |
9 |
| Leica Microsystems CMS GmbH | 1099 |
8 |
| Carl Zeiss Surgical GmbH | 56 |
7 |
| Carl Zeiss AG | 897 |
6 |
| Oculus Surgical, Inc. | 7 |
6 |
| Leica Microsystems NC, Inc. | 70 |
6 |
| Duke University | 3087 |
5 |
| Other owners | 237 |