- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 6/028 - Optical fibres with cladding with core or cladding having graded refractive index
Patent holdings for IPC class G02B 6/028
Total number of patents in this class: 934
10-year publication summary
|
77
|
76
|
110
|
79
|
63
|
81
|
53
|
60
|
27
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10246 |
226 |
| Sumitomo Electric Industries, Ltd. | 15414 |
56 |
| Draka Comteq, B.V. | 254 |
49 |
| OFS Fitel, LLC | 561 |
48 |
| nLIGHT, Inc. | 405 |
41 |
| Fujikura Ltd. | 2917 |
32 |
| Panduit Corp. | 1005 |
23 |
| The Furukawa Electric Co., Ltd. | 3644 |
21 |
| Yangtze Optical Fibre and Cable Joint Stock Limited Company | 90 |
17 |
| Nippon Telegraph and Telephone Corporation | 17260 |
12 |
| Corning Optical Communications LLC | 1311 |
12 |
| Fiberhome Telecommunication Technologies Co., Ltd. | 349 |
12 |
| Sterlite Technologies Limited | 222 |
12 |
| CommScope Technologies LLC | 3473 |
8 |
| Draka Comteq France | 13 |
8 |
| Chiral Photonics, Inc. | 51 |
7 |
| Lumentum Operations LLC | 728 |
6 |
| Magic Leap, Inc. | 3235 |
6 |
| Zhongtian Technology Advanced Materials Co., Ltd. | 29 |
6 |
| Corning Research & Development Corporation | 1166 |
6 |
| Other owners | 326 |