- All sections
- C - Chemistry; metallurgy
- C03C - Chemical composition of glasses, glazes or vitreous enamels; surface treatment of glass; surface treatment of fibres or filaments made from glass, minerals or slags; joining 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: 150
10-year publication summary
|
11
|
11
|
10
|
12
|
8
|
11
|
12
|
15
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Electric Glass Co., Ltd. | 2388 |
23 |
| Hoya Corporation | 2812 |
16 |
| Agc, Inc. | 4414 |
15 |
| Corning Incorporated | 10087 |
11 |
| Ohara Inc. | 213 |
11 |
| SCHOTT AG | 1671 |
7 |
| Nikon Corporation | 7116 |
6 |
| Asahi Glass Company, Limited | 2885 |
6 |
| CDGM Glass Co., Ltd | 131 |
5 |
| National Institute of Advanced Industrial Science and Technology | 3727 |
4 |
| SCHOTT Corporation | 75 |
4 |
| LG Electronics Inc. | 70831 |
3 |
| Sumita Optical Glass, Inc. | 41 |
3 |
| Nanjing Tongli Crystal Materials Research Institute Co., Ltd | 16 |
3 |
| Alps Electric Co., Ltd. | 835 |
2 |
| Afo Research, Inc. | 8 |
2 |
| Central Glass Company, Limited | 1241 |
2 |
| KOA Glass Co., Ltd. | 38 |
2 |
| Panasonic Corporation | 20339 |
1 |
| Konica Minolta, Inc. | 8510 |
1 |
| Other owners | 23 |