- 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 3/17 - Silica-free oxide glass compositions containing phosphorus containing aluminium or beryllium
Patent holdings for IPC class C03C 3/17
Total number of patents in this class: 156
10-year publication summary
|
11
|
10
|
12
|
8
|
11
|
12
|
15
|
3
|
6
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agc, Inc. | 5563 |
26 |
| Nippon Electric Glass Co., Ltd. | 2559 |
23 |
| Corning Incorporated | 10511 |
12 |
| Hoya Corporation | 2691 |
12 |
| Ohara Inc. | 213 |
8 |
| SCHOTT AG | 1744 |
7 |
| Nikon Corporation | 7236 |
6 |
| CDGM Glass Co., Ltd | 148 |
6 |
| Asahi Glass Company, Limited | 2611 |
5 |
| SCHOTT Corporation | 67 |
4 |
| LG Electronics Inc. | 75807 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3788 |
3 |
| Sumita Optical Glass, Inc. | 44 |
3 |
| Nanjing Tongli Crystal Materials Research Institute Co., Ltd | 16 |
3 |
| Alps Electric Co., Ltd. | 754 |
2 |
| Central Glass Company, Limited | 1297 |
2 |
| KOA Glass Co., Ltd. | 35 |
2 |
| Kongju National University Industry-University Cooperation Foundation | 112 |
2 |
| Panasonic Corporation | 18896 |
1 |
| Konica Minolta, Inc. | 9143 |
1 |
| Other owners | 25 |