- 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 4/20 - Compositions for glass with special properties for chemical resistant glass
Patent holdings for IPC class C03C 4/20
Total number of patents in this class: 197
10-year publication summary
|
20
|
21
|
24
|
15
|
9
|
14
|
16
|
12
|
11
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10422 |
58 |
| SCHOTT AG | 1733 |
42 |
| Nippon Electric Glass Co., Ltd. | 2512 |
18 |
| SGD S.A. | 57 |
8 |
| Agc, Inc. | 5302 |
7 |
| LG Electronics Inc. | 74968 |
5 |
| CDGM Glass Co., Ltd | 145 |
5 |
| Heraeus Quarzglas GmbH & Co. KG | 416 |
3 |
| Iones Co., Ltd. | 20 |
3 |
| HASS Co., Ltd. | 64 |
2 |
| Nipro Corporation | 1037 |
2 |
| Owens-Brockway Glass Container Inc. | 805 |
2 |
| Owens Corning Intellectual Capital, LLC | 1640 |
2 |
| Qsil GmbH Quarzschmelze Ilmenau | 7 |
2 |
| Electric Glass Fiber America, LLC | 60 |
2 |
| ARC France | 105 |
2 |
| Nippon Electric Glass America, Inc. | 20 |
2 |
| Hansol Iones Co., Ltd. | 14 |
2 |
| Ruyuan HEC Pharmaceutical Glass Technology Co., Ltd. | 2 |
2 |
| Sandoz AG | 1401 |
1 |
| Other owners | 27 |