- 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: 859
10-year publication summary
|
90
|
65
|
80
|
67
|
73
|
95
|
85
|
66
|
63
|
72
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Essilor International (compagnie Generale D'optique) | 2995 |
83 |
| Carl Zeiss Vision International GmbH | 693 |
29 |
| Zenni Optical, Inc. | 101 |
22 |
| Nidek Co., Ltd. | 340 |
20 |
| Raytrx, LLC | 65 |
15 |
| Topcon Corporation | 1188 |
13 |
| University of Miami | 856 |
13 |
| Genentech, Inc. | 4110 |
11 |
| Alcon, Inc. | 5876 |
11 |
| Rodenstock GmbH | 396 |
11 |
| EyeQue Inc. | 35 |
10 |
| Warby Parker Inc. | 126 |
10 |
| 6 Over 6 Vision Ltd | 39 |
9 |
| Welch Allyn, Inc. | 827 |
9 |
| Visibly, Inc. | 20 |
9 |
| Siview | 24 |
9 |
| Samsung Electronics Co., Ltd. | 157946 |
8 |
| Johnson & Johnson Vision Care, Inc. | 1158 |
8 |
| West Texas Technology Partners, LLC | 207 |
8 |
| Carl Zeiss AG | 916 |
7 |
| Other owners | 544 |