- 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 3/23 - Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron
Patent holdings for IPC class C03C 3/23
Total number of patents in this class: 68
10-year publication summary
|
5
|
11
|
10
|
5
|
5
|
3
|
0
|
5
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10336 |
13 |
| Hoya Corporation | 2759 |
10 |
| IR Scientific Inc. | 12 |
8 |
| Nihon Yamamura Glass Co., Ltd. | 132 |
7 |
| Agc, Inc. | 4949 |
6 |
| Nippon Electric Glass Co., Ltd. | 2474 |
5 |
| Ohara Inc. | 210 |
2 |
| Pukyong National University Industry-University Cooperation Foundation | 352 |
2 |
| Umicore | 665 |
2 |
| Huawei Technologies Co., Ltd. | 114462 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10959 |
1 |
| Idemitsu Kosan Co., Ltd. | 4239 |
1 |
| National Institute of Advanced Industrial Science and Technology | 3797 |
1 |
| Ningbo University | 40 |
1 |
| SCHOTT AG | 1707 |
1 |
| SCHOTT Corporation | 72 |
1 |
| Sumita Optical Glass, Inc. | 44 |
1 |
| Shanghai Xinhe Photoelectric Technology Co., Ltd. | 1 |
1 |
| Centro de Investigaciones en Óptica, A.C. | 7 |
1 |
| Shandong Guangyun Intelligent Technology Co., Ltd. | 38 |
1 |
| Other owners | 2 |