- 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: 357
10-year publication summary
|
28
|
27
|
35
|
24
|
34
|
26
|
31
|
20
|
31
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10422 |
65 |
| Sumitomo Electric Industries, Ltd. | 16091 |
57 |
| NKT Photonics A/S | 264 |
12 |
| OFS Fitel, LLC | 571 |
11 |
| Fujikura Ltd. | 3040 |
8 |
| The Furukawa Electric Co., Ltd. | 3700 |
7 |
| Heraeus Quarzglas GmbH & Co. KG | 416 |
7 |
| SCHOTT AG | 1733 |
6 |
| Agc, Inc. | 5302 |
6 |
| Hamamatsu Photonics K.K. | 4601 |
5 |
| SCHOTT Corporation | 68 |
5 |
| Sumita Optical Glass, Inc. | 44 |
5 |
| Redwire Space, Inc. | 32 |
5 |
| Huawei Technologies Co., Ltd. | 120098 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5948 |
4 |
| China Building Materials Academy | 25 |
4 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1420 |
4 |
| Korea Photonics Technology Institute | 181 |
4 |
| The Penn State Research Foundation | 1599 |
4 |
| Saint-Gobain Isover | 667 |
4 |
| Other owners | 130 |