- 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 3/12 - Silica-free oxide glass compositions
Patent holdings for IPC class C03C 3/12
Total number of patents in this class: 270
10-year publication summary
|
23
|
19
|
22
|
22
|
13
|
13
|
22
|
22
|
8
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10426 |
26 |
| Nippon Electric Glass Co., Ltd. | 2512 |
26 |
| Nikon Corporation | 7306 |
15 |
| Luxwall, Inc. | 117 |
14 |
| Changzhou Fusion New Material Co., Ltd. | 56 |
11 |
| 3m Innovative Properties Company | 17509 |
8 |
| Guardian Glass, LLC | 566 |
7 |
| Hitachi, Ltd. | 15904 |
6 |
| Ohara Inc. | 210 |
6 |
| Agc, Inc. | 5320 |
6 |
| Ferro GmbH | 19 |
5 |
| Bass Co., Ltd. | 43 |
5 |
| Central Glass Company, Limited | 1286 |
4 |
| Guardian Industries Corp. | 305 |
4 |
| SCHOTT AG | 1736 |
4 |
| Solar Paste, LLC | 121 |
4 |
| Resonac Corporation | 3230 |
4 |
| Hoya Corporation | 2736 |
3 |
| OSRAM GmbH | 2264 |
3 |
| Johnson Matthey Public Limited Company | 1750 |
3 |
| Other owners | 106 |