- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 13/04 - Reversed telephoto objectives
Patent holdings for IPC class G02B 13/04
Total number of patents in this class: 1177
10-year publication summary
|
118
|
128
|
112
|
164
|
89
|
54
|
43
|
35
|
34
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Olympus Corporation | 13174 |
159 |
| FUJIFILM Corporation | 29437 |
155 |
| Largan Precision Co., Ltd. | 1541 |
78 |
| Nikon Corporation | 7177 |
55 |
| Canon Inc. | 40095 |
39 |
| Samsung Electro-mechanics Co., Ltd. | 5624 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 31562 |
33 |
| Ricoh Company, Ltd. | 13283 |
27 |
| Konica Minolta, Inc. | 8755 |
25 |
| Maxell, Ltd. | 2804 |
25 |
| Tokyo Visionary Optics Co., Ltd. | 425 |
24 |
| Olympus Medical Systems Corp. | 1798 |
22 |
| Nidec Sankyo Corporation | 1080 |
21 |
| Sony Corporation | 31025 |
20 |
| Genius Electronic Optical Co., Ltd. | 177 |
17 |
| Zhejiang Sunny Optics Co., Ltd. | 358 |
15 |
| Tianjin Ofilm Opto Electronics Co., Ltd. | 101 |
15 |
| Jiangxi Ofilm Optical Co., Ltd. | 93 |
15 |
| Corephotonics Ltd. | 404 |
14 |
| Ability Opto-Electronics Technology Co., Ltd. | 365 |
13 |
| Other owners | 372 |