- 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: 152
10-year publication summary
|
11
|
11
|
11
|
10
|
12
|
8
|
11
|
12
|
15
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Electric Glass Co., Ltd. | 2299 |
23 |
| Hoya Corporation | 2822 |
17 |
| Agc, Inc. | 4029 |
15 |
| Corning Incorporated | 9932 |
12 |
| Ohara Inc. | 200 |
11 |
| SCHOTT AG | 1675 |
7 |
| Nikon Corporation | 7162 |
6 |
| Asahi Glass Company, Limited | 2985 |
6 |
| CDGM Glass Co., Ltd | 124 |
5 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
4 |
| SCHOTT Corporation | 77 |
4 |
| LG Electronics Inc. | 69257 |
3 |
| Sumita Optical Glass, Inc. | 42 |
3 |
| Nanjing Tongli Crystal Materials Research Institute Co., Ltd | 16 |
3 |
| Alps Electric Co., Ltd. | 851 |
2 |
| Afo Research, Inc. | 8 |
2 |
| Central Glass Company, Limited | 1244 |
2 |
| KOA Glass Co., Ltd. | 39 |
2 |
| Panasonic Corporation | 20786 |
1 |
| Konica Minolta, Inc. | 8349 |
1 |
| Other owners | 23 |