- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 15/15 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective compensation by means of only one movement or by means of only linearly related movements, e.g. optical compensation
Patent holdings for IPC class G02B 15/15
Total number of patents in this class: 136
10-year publication summary
|
14
|
17
|
21
|
17
|
6
|
11
|
9
|
15
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 40352 |
21 |
| FUJIFILM Corporation | 29543 |
16 |
| Navitar, Inc. | 74 |
14 |
| Nikon Corporation | 7213 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
10 |
| Olympus Corporation | 13151 |
4 |
| Nittoh Inc. | 96 |
4 |
| Hoya Corporation | 2753 |
3 |
| Largan Precision Co., Ltd. | 1545 |
3 |
| OM Digital Solutions Corp. | 606 |
3 |
| Sony Corporation | 30936 |
2 |
| Huawei Technologies Co., Ltd. | 113689 |
2 |
| Konica Minolta Advanced Layers, Inc. | 217 |
2 |
| LG Innotek Co., Ltd. | 7722 |
2 |
| Corephotonics Ltd. | 411 |
2 |
| Hand held Products, Inc. | 1262 |
2 |
| ROBE Lighting s.r.o. | 132 |
2 |
| Theia Technologies LLC | 24 |
2 |
| LG Electronics Inc. | 73531 |
1 |
| Seiko Epson Corporation | 19510 |
1 |
| Other owners | 29 |