- All sections
- A - Human necessities
- A61B - Diagnosissurgeryidentification
- A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
Patent holdings for IPC class A61B 3/12
Total number of patents in this class: 2790
10-year publication summary
|
281
|
264
|
229
|
258
|
269
|
258
|
243
|
233
|
204
|
40
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 38847 |
138 |
| Topcon Corporation | 1057 |
121 |
| Carl Zeiss Meditec AG | 1604 |
104 |
| Kabushiki Kaisha Topcon | 592 |
96 |
| Alcon, Inc. | 5295 |
77 |
| Canon Kabushiki Kaisha | 6991 |
73 |
| Welch Allyn, Inc. | 773 |
72 |
| Optos plc | 199 |
71 |
| Carl Zeiss Meditec, Inc. | 284 |
67 |
| Nidek Co., Ltd. | 346 |
60 |
| Nikon Corporation | 7124 |
58 |
| Magic Leap, Inc. | 3170 |
50 |
| Verily Life Sciences LLC | 1524 |
41 |
| The Regents of the University of California | 19637 |
20 |
| Duke University | 3034 |
20 |
| Oregon Health & Science University | 753 |
20 |
| Sony Corporation | 31313 |
19 |
| Tesseract Health, Inc. | 30 |
18 |
| The Johns Hopkins University | 5561 |
17 |
| Centervue S.p.A. | 21 |
17 |
| Other owners | 1631 |