- All sections
- C - Chemistry; metallurgy
- C03B - Manufacture or shaping of glass, or of mineral or slag wool; supplementary processes in the manufacture or shaping of glass, or of mineral or slag wool
- C03B 37/018 - Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means by glass deposition on a glass substrate, e.g. by chemical vapour deposition
Patent holdings for IPC class C03B 37/018
Total number of patents in this class: 423
10-year publication summary
29
|
31
|
33
|
31
|
37
|
26
|
21
|
22
|
11
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumitomo Electric Industries, Ltd. | 14131 |
55 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
53 |
Corning Incorporated | 9932 |
47 |
Draka Comteq, B.V. | 275 |
41 |
The Furukawa Electric Co., Ltd. | 3486 |
34 |
Fujikura Ltd. | 2777 |
31 |
Heraeus Quarzglas GmbH & Co. KG | 420 |
22 |
OFS Fitel, LLC | 549 |
10 |
j-fiber GmbH | 25 |
8 |
Jiangsu Zhongtian Technology Co., Ltd. | 92 |
8 |
Zhongtian Technology Advanced Materials Co., Ltd. | 23 |
7 |
Fiberhome Telecommunication Technologies Co., Ltd. | 337 |
6 |
Prysmian S.p.A. | 846 |
6 |
Council of Scientific & Industrial Research | 1397 |
5 |
Sterlite Optical Technologies Limited | 15 |
5 |
Yangtze Optical Fibre and Cable Joint Stock Limited Company | 69 |
5 |
Yangze Optical Fibre and Cable Company, Ltd | 27 |
4 |
Zhongtian Technology Fiber Potics Co., Ltd | 18 |
4 |
Jiangsu Etern Optical Fiber Technology Co., Ltd. | 12 |
4 |
Baker Hughes Incorporated | 5689 |
3 |
Other owners | 65 |