- 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 3/19 - Silica-free oxide glass compositions containing phosphorus containing boron
Patent holdings for IPC class C03C 3/19
Total number of patents in this class: 219
10-year publication summary
|
12
|
17
|
17
|
14
|
8
|
8
|
13
|
17
|
8
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10268 |
23 |
| SCHOTT AG | 1712 |
23 |
| Nippon Electric Glass Co., Ltd. | 2459 |
21 |
| Hoya Corporation | 2746 |
19 |
| Ohara Inc. | 215 |
17 |
| Agc, Inc. | 4861 |
14 |
| Asahi Glass Company, Limited | 2781 |
12 |
| Nikon Corporation | 7173 |
9 |
| CDGM Glass Co., Ltd | 137 |
7 |
| LG Electronics Inc. | 73210 |
5 |
| The Curators of the University of Missouri | 1045 |
5 |
| KOA Glass Co., Ltd. | 37 |
4 |
| Konica Minolta, Inc. | 8751 |
3 |
| Alps Electric Co., Ltd. | 809 |
3 |
| PolyPlus Battery Company | 98 |
3 |
| SCHOTT Corporation | 72 |
3 |
| 3m Innovative Properties Company | 17819 |
2 |
| Goodrich Corporation | 2129 |
2 |
| Sumita Optical Glass, Inc. | 44 |
2 |
| ICL Specialty Products Inc. | 71 |
2 |
| Other owners | 40 |