- 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 3/247 - Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron containing fluorine and phosphorus
Patent holdings for IPC class C03C 3/247
Total number of patents in this class: 158
10-year publication summary
|
19
|
12
|
9
|
11
|
15
|
15
|
5
|
6
|
10
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoya Corporation | 2822 |
29 |
| Corning Incorporated | 9932 |
21 |
| CDGM Glass Co., Ltd | 124 |
18 |
| Nippon Electric Glass Co., Ltd. | 2299 |
13 |
| Agc, Inc. | 4029 |
11 |
| Asahi Glass Company, Limited | 2985 |
10 |
| Ohara Inc. | 200 |
8 |
| Pandian Bio-Medical Research Centre | 7 |
7 |
| Afo Research, Inc. | 8 |
6 |
| SCHOTT AG | 1675 |
5 |
| Nikon Corporation | 7162 |
3 |
| Korea Photonics Technology Institute | 141 |
3 |
| Nihon Yamamura Glass Co., Ltd. | 144 |
3 |
| IR Scientific Inc. | 12 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
2 |
| YEJ GLASS Co., Ltd. | 5 |
2 |
| 3m Innovative Properties Company | 18406 |
1 |
| Samsung Display Co., Ltd. | 30585 |
1 |
| Applied Materials, Inc. | 16587 |
1 |
| Bemis Company, Inc. | 281 |
1 |
| Other owners | 10 |