- All sections
- A - Human necessities
- A61B - Diagnosissurgeryidentification
- A61B 3/135 - Slit-lamp microscopes
Patent holdings for IPC class A61B 3/135
Total number of patents in this class: 264
10-year publication summary
|
14
|
19
|
16
|
27
|
29
|
45
|
45
|
30
|
28
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topcon Corporation | 1042 |
54 |
| Haag-Streit AG | 83 |
16 |
| IRIDEX Corporation | 116 |
11 |
| Kabushiki Kaisha Topcon | 595 |
11 |
| Carl Zeiss Meditec AG | 1601 |
9 |
| Chongqing Kanghua Ruiming Science Technology Co., Ltd | 9 |
9 |
| Alcon, Inc. | 5199 |
8 |
| Intelligent Diagnostics, LLC | 12 |
8 |
| Sony Group Corporation | 12761 |
8 |
| Lightx Innovations Inc. | 9 |
6 |
| Kowa Company, Ltd. | 1191 |
4 |
| Shanghai Mediworks Precision Instruments Co., Ltd. | 15 |
4 |
| Takagi Seiko Co., Ltd. | 7 |
4 |
| Topcon Medical Laser Systems, Inc. | 12 |
4 |
| The Regents of the University of California | 19572 |
3 |
| Magic Leap, Inc. | 3260 |
3 |
| Optotek d.o.o. | 23 |
3 |
| Alcon, Inc. | 450 |
2 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 2072 |
2 |
| Bausch & Lomb Incorporated | 1139 |
2 |
| Other owners | 93 |