- All sections
- C - Chemistrymetallurgy
- C03B - Manufacture or shaping of glass, or of mineral or slag woolsupplementary 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: 414
10-year publication summary
|
31
|
33
|
31
|
37
|
26
|
21
|
22
|
11
|
15
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15495 |
56 |
| Corning Incorporated | 10263 |
50 |
| Shin-Etsu Chemical Co., Ltd. | 5662 |
47 |
| Draka Comteq, B.V. | 254 |
40 |
| The Furukawa Electric Co., Ltd. | 3652 |
34 |
| Fujikura Ltd. | 2938 |
30 |
| Heraeus Quarzglas GmbH & Co. KG | 408 |
21 |
| OFS Fitel, LLC | 563 |
10 |
| j-fiber GmbH | 26 |
8 |
| Jiangsu Zhongtian Technology Co., Ltd. | 146 |
8 |
| Zhongtian Technology Advanced Materials Co., Ltd. | 30 |
8 |
| Fiberhome Telecommunication Technologies Co., Ltd. | 351 |
6 |
| Prysmian S.p.A. | 882 |
6 |
| Yangtze Optical Fibre and Cable Joint Stock Limited Company | 90 |
6 |
| Council of Scientific & Industrial Research | 1425 |
5 |
| Sterlite Optical Technologies Limited | 15 |
5 |
| Yangze Optical Fibre and Cable Company, Ltd | 27 |
4 |
| Zhongtian Technology Fiber Potics Co., Ltd | 22 |
4 |
| Jiangsu Etern Optical Fiber Technology Co., Ltd. | 12 |
4 |
| Department of Electronics and Information Technology | 8 |
3 |
| Other owners | 59 |