- 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: 1161
10-year publication summary
|
128
|
118
|
128
|
114
|
164
|
87
|
53
|
42
|
33
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Olympus Corporation | 13667 |
160 |
| FUJIFILM Corporation | 27102 |
155 |
| Largan Precision Co., Ltd. | 1411 |
75 |
| Nikon Corporation | 7162 |
51 |
| Canon Inc. | 36841 |
39 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
33 |
| Ricoh Company, Ltd. | 13266 |
25 |
| Samsung Electro-mechanics Co., Ltd. | 4798 |
25 |
| Konica Minolta, Inc. | 8349 |
25 |
| Tokyo Visionary Optics Co., Ltd. | 425 |
24 |
| Olympus Medical Systems Corp. | 1661 |
21 |
| Nidec Sankyo Corporation | 1117 |
21 |
| Maxell, Ltd. | 2533 |
21 |
| Sony Corporation | 32931 |
20 |
| Genius Electronic Optical Co., Ltd. | 197 |
16 |
| Zhejiang Sunny Optics Co., Ltd. | 349 |
15 |
| Tianjin Ofilm Opto Electronics Co., Ltd. | 107 |
15 |
| Jiangxi Ofilm Optical Co., Ltd. | 84 |
15 |
| Konica Minolta Opto, Inc. | 1179 |
14 |
| OM Digital Solutions Corp. | 706 |
14 |
| Other owners | 377 |