- All sections
- A - Human necessities
- A61B - Diagnosissurgeryidentification
- A61B 3/032 - Devices for presenting test symbols or characters, e.g. test chart projectors
Patent holdings for IPC class A61B 3/032
Total number of patents in this class: 770
10-year publication summary
|
73
|
90
|
65
|
80
|
67
|
73
|
95
|
82
|
62
|
40
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Essilor International (compagnie Generale D'optique) | 2993 |
82 |
| Carl Zeiss Vision International GmbH | 627 |
28 |
| Nidek Co., Ltd. | 342 |
19 |
| Raytrx, LLC | 58 |
15 |
| Light Field Lab, Inc. | 185 |
12 |
| Genentech, Inc. | 3976 |
11 |
| University of Miami | 834 |
11 |
| Warby Parker Inc. | 115 |
11 |
| EyeQue Inc. | 36 |
10 |
| Visibly, Inc. | 21 |
9 |
| Rodenstock GmbH | 381 |
8 |
| Topcon Corporation | 1071 |
8 |
| Verily Life Sciences LLC | 1569 |
8 |
| West Texas Technology Partners, LLC | 188 |
8 |
| Johnson & Johnson Vision Care, Inc. | 1183 |
7 |
| Carl Zeiss AG | 886 |
7 |
| Boe Technology Group Co., Ltd. | 41139 |
7 |
| 6 Over 6 Vision Ltd | 36 |
7 |
| Alcon, Inc. | 5425 |
7 |
| Bertec Corporation | 119 |
7 |
| Other owners | 488 |