- 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: 67
10-year publication summary
5
|
5
|
11
|
10
|
5
|
6
|
5
|
0
|
5
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Corning Incorporated | 9932 |
13 |
Hoya Corporation | 2822 |
12 |
IR Scientific Inc. | 12 |
8 |
Nihon Yamamura Glass Co., Ltd. | 144 |
7 |
Nippon Electric Glass Co., Ltd. | 2299 |
5 |
Agc, Inc. | 4029 |
5 |
Ohara Inc. | 200 |
2 |
Pukyong National University Industry-University Cooperation Foundation | 254 |
2 |
Huawei Technologies Co., Ltd. | 100781 |
1 |
Idemitsu Kosan Co., Ltd. | 3995 |
1 |
National Institute of Advanced Industrial Science and Technology | 3677 |
1 |
Ningbo University | 37 |
1 |
NP Photonics, Inc. | 11 |
1 |
SCHOTT AG | 1675 |
1 |
SCHOTT Corporation | 77 |
1 |
Sumita Optical Glass, Inc. | 42 |
1 |
Umicore | 542 |
1 |
Shanghai Xinhe Photoelectric Technology Co., Ltd. | 1 |
1 |
Centro de Investigaciones en Óptica, A.C. | 6 |
1 |
Shandong Guangyun Intelligent Technology Co., Ltd. | 38 |
1 |
Other owners | 1 |