- 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: 361
10-year publication summary
|
28
|
28
|
35
|
25
|
34
|
29
|
31
|
20
|
31
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10500 |
65 |
| Sumitomo Electric Industries, Ltd. | 16305 |
58 |
| NKT Photonics A/S | 267 |
12 |
| OFS Fitel, LLC | 574 |
11 |
| Fujikura Ltd. | 3078 |
8 |
| The Furukawa Electric Co., Ltd. | 3701 |
7 |
| Heraeus Quarzglas GmbH & Co. KG | 417 |
7 |
| SCHOTT AG | 1737 |
6 |
| Agc, Inc. | 5502 |
6 |
| Shin-Etsu Chemical Co., Ltd. | 6083 |
5 |
| Hamamatsu Photonics K.K. | 4669 |
5 |
| SCHOTT Corporation | 67 |
5 |
| Sumita Optical Glass, Inc. | 44 |
5 |
| Redwire Space, Inc. | 33 |
5 |
| Huawei Technologies Co., Ltd. | 123282 |
4 |
| China Building Materials Academy | 26 |
4 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1449 |
4 |
| Korea Photonics Technology Institute | 188 |
4 |
| The Penn State Research Foundation | 1608 |
4 |
| Saint-Gobain Isover | 678 |
4 |
| Other owners | 132 |