- 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 3/23 - 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
|
6
|
5
|
0
|
5
|
2
|
0
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Corning Incorporated | 10125 |
13 |
Hoya Corporation | 2745 |
11 |
IR Scientific Inc. | 13 |
9 |
Nihon Yamamura Glass Co., Ltd. | 137 |
7 |
Nippon Electric Glass Co., Ltd. | 2396 |
5 |
Agc, Inc. | 4470 |
5 |
Ohara Inc. | 213 |
2 |
Pukyong National University Industry-University Cooperation Foundation | 312 |
2 |
Umicore | 598 |
2 |
Huawei Technologies Co., Ltd. | 106762 |
1 |
Idemitsu Kosan Co., Ltd. | 4103 |
1 |
National Institute of Advanced Industrial Science and Technology | 3736 |
1 |
Ningbo University | 34 |
1 |
SCHOTT AG | 1673 |
1 |
SCHOTT Corporation | 75 |
1 |
Sumita Optical Glass, Inc. | 41 |
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 |
Changzhou Fusion New Material Co., Ltd. | 61 |
1 |
Other owners | 1 |