- 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 3/06 - Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
Patent holdings for IPC class C03C 3/06
Total number of patents in this class: 519
10-year publication summary
|
42
|
55
|
34
|
43
|
37
|
27
|
29
|
19
|
39
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10263 |
104 |
| Heraeus Quarzglas GmbH & Co. KG | 408 |
84 |
| Asahi Glass Company, Limited | 2783 |
31 |
| Shin-Etsu Quartz Products Co., Ltd. | 146 |
28 |
| Shin-Etsu Chemical Co., Ltd. | 5662 |
27 |
| Agc, Inc. | 4845 |
24 |
| Sumitomo Electric Industries, Ltd. | 15495 |
16 |
| Carl Zeiss SMT GmbH | 2979 |
10 |
| Hoya Corporation | 2744 |
9 |
| Nippon Electric Glass Co., Ltd. | 2457 |
7 |
| Momentive Performance Materials Quartz, Inc. | 73 |
7 |
| SCHOTT AG | 1712 |
5 |
| Tosoh SGM Corporation | 14 |
5 |
| Nikon Corporation | 7170 |
4 |
| Degussa Novara Technology S.p.A. | 10 |
4 |
| NGK Insulators, Ltd. | 4964 |
3 |
| Mitsubishi Chemical Corporation | 4514 |
3 |
| Koito Manufacturing Co., Ltd. | 2245 |
3 |
| Mitsubishi Materials Corporation | 2444 |
3 |
| OFS Fitel, LLC | 563 |
3 |
| Other owners | 139 |