- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 7/38 - Systems for automatic generation of focusing signals using image sharpness techniques measured at different points on the optical axis
Patent holdings for IPC class G02B 7/38
Total number of patents in this class: 223
10-year publication summary
39
|
27
|
20
|
25
|
19
|
22
|
13
|
8
|
12
|
2
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Canon Inc. | 38148 |
12 |
FUJIFILM Corporation | 28805 |
12 |
Sony Corporation | 31541 |
11 |
Nikon Corporation | 7123 |
10 |
Olympus Corporation | 13275 |
9 |
Leica Microsystems CMS GmbH | 1070 |
7 |
S.D. Sight Diagnostics Ltd. | 100 |
7 |
Samsung Electronics Co., Ltd. | 139001 |
6 |
KLA-Tencor Corporation | 2550 |
5 |
Leica Biosystems Imaging, Inc. | 246 |
5 |
Sony Group Corporation | 12664 |
5 |
Molecular Devices, LLC | 231 |
4 |
Nanotronics Imaging, Inc. | 197 |
4 |
Sony Semiconductor Solutions Corporation | 9714 |
4 |
Huawei Technologies Co., Ltd. | 106762 |
3 |
Mitutoyo Corporation | 1219 |
3 |
Ventana Medical Systems, Inc. | 1003 |
3 |
OM Digital Solutions Corp. | 634 |
3 |
Qualcomm Incorporated | 81865 |
2 |
F. Hoffmann-La Roche AG | 7942 |
2 |
Other owners | 106 |