- All sections
- C - Chemistrymetallurgy
- C03C - Chemical composition of glasses, glazes or vitreous enamelssurface treatment of glasssurface treatment of fibres or filaments made from glass, minerals or slagsjoining glass to glass or other materials
- C03C 13/04 - Fibre optics, e.g. core and clad fibre compositions
Patent holdings for IPC class C03C 13/04
Total number of patents in this class: 341
10-year publication summary
|
28
|
28
|
28
|
35
|
25
|
34
|
28
|
29
|
19
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10252 |
64 |
| Sumitomo Electric Industries, Ltd. | 15391 |
50 |
| NKT Photonics A/S | 249 |
12 |
| OFS Fitel, LLC | 563 |
10 |
| Fujikura Ltd. | 2916 |
9 |
| The Furukawa Electric Co., Ltd. | 3638 |
7 |
| Heraeus Quarzglas GmbH & Co. KG | 409 |
7 |
| SCHOTT AG | 1716 |
6 |
| Agc, Inc. | 4772 |
6 |
| Hamamatsu Photonics K.K. | 4391 |
5 |
| SCHOTT Corporation | 73 |
5 |
| Sumita Optical Glass, Inc. | 43 |
5 |
| Redwire Space, Inc. | 31 |
5 |
| Huawei Technologies Co., Ltd. | 111449 |
4 |
| China Building Materials Academy | 24 |
4 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1289 |
4 |
| Korea Photonics Technology Institute | 172 |
4 |
| The Penn State Research Foundation | 1513 |
4 |
| Saint-Gobain Isover | 632 |
4 |
| South China University of Technology | 1772 |
4 |
| Other owners | 122 |