- 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 37/014 - Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means
Patent holdings for IPC class C03B 37/014
Total number of patents in this class: 410
10-year publication summary
|
36
|
24
|
30
|
30
|
43
|
28
|
23
|
26
|
18
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10252 |
104 |
| Shin-Etsu Chemical Co., Ltd. | 5615 |
63 |
| Sumitomo Electric Industries, Ltd. | 15391 |
53 |
| Heraeus Quarzglas GmbH & Co. KG | 409 |
34 |
| The Furukawa Electric Co., Ltd. | 3638 |
32 |
| Prysmian S.p.A. | 875 |
22 |
| Fujikura Ltd. | 2916 |
17 |
| Shin-Etsu Quartz Products Co., Ltd. | 148 |
6 |
| Jiangsu Etern Company Limited | 33 |
5 |
| ASI/Silica Machinery, LLC | 5 |
4 |
| OFS Fitel, LLC | 563 |
3 |
| Sterlite Optical Technologies Limited | 15 |
3 |
| Sterlite Technologies Limited | 220 |
3 |
| Hengtong Optical Material Co., Ltd | 17 |
3 |
| Jiangsu Etern Optical Fiber Technology Co., Ltd. | 12 |
3 |
| biolitec Holding GmbH & Co KG | 39 |
3 |
| Huawei Technologies Co., Ltd. | 111449 |
2 |
| Beneq Oy | 246 |
2 |
| biolitec Unternehmensbeteiligungs II AG | 62 |
2 |
| Fiberhome Telecommunication Technologies Co., Ltd. | 348 |
2 |
| Other owners | 44 |