- All sections
- A - Human necessities
- A61B - Diagnosis; surgery; identification
- 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: 2665
10-year publication summary
|
184
|
281
|
264
|
229
|
258
|
268
|
254
|
238
|
220
|
68
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
157 |
| Topcon Corporation | 979 |
114 |
| Carl Zeiss Meditec AG | 1541 |
108 |
| Kabushiki Kaisha Topcon | 614 |
96 |
| Canon Kabushiki Kaisha | 6884 |
72 |
| Optos plc | 193 |
68 |
| Welch Allyn, Inc. | 788 |
68 |
| Alcon, Inc. | 4899 |
66 |
| Carl Zeiss Meditec, Inc. | 282 |
65 |
| Nidek Co., Ltd. | 357 |
64 |
| Nikon Corporation | 7162 |
53 |
| Magic Leap, Inc. | 3028 |
51 |
| Verily Life Sciences LLC | 1226 |
37 |
| Sony Corporation | 32931 |
20 |
| Duke University | 2872 |
19 |
| Oregon Health & Science University | 746 |
19 |
| Tesseract Health, Inc. | 34 |
19 |
| Centervue S.p.A. | 20 |
18 |
| The Regents of the University of California | 18943 |
17 |
| The Johns Hopkins University | 5377 |
16 |
| Other owners | 1518 |