- All sections
- C - Chemistry; metallurgy
- C03C - Chemical composition of glasses, glazes or vitreous enamels; surface treatment of glass; surface treatment of fibres or filaments made from glass, minerals or slags; joining 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: 322
10-year publication summary
28
|
28
|
28
|
28
|
35
|
25
|
33
|
27
|
28
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Corning Incorporated | 9932 |
62 |
Sumitomo Electric Industries, Ltd. | 14131 |
46 |
Fujikura Ltd. | 2777 |
9 |
NKT Photonics A/S | 215 |
9 |
OFS Fitel, LLC | 549 |
8 |
Heraeus Quarzglas GmbH & Co. KG | 420 |
7 |
The Furukawa Electric Co., Ltd. | 3486 |
6 |
Hamamatsu Photonics K.K. | 4161 |
5 |
SCHOTT AG | 1675 |
5 |
Sumita Optical Glass, Inc. | 42 |
5 |
Redwire Space, Inc. | 33 |
5 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
4 |
China Building Materials Academy | 19 |
4 |
Korea Photonics Technology Institute | 141 |
4 |
The Penn State Research Foundation | 1423 |
4 |
SCHOTT Corporation | 77 |
4 |
Baker Hughes Incorporated | 5689 |
3 |
Centre National de La Recherche Scientifique | 9632 |
3 |
Huawei Technologies Co., Ltd. | 100781 |
3 |
Olympus Medical Systems Corp. | 1661 |
3 |
Other owners | 123 |