- 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 8/04 - Frit compositions, i.e. in a powdered or comminuted form containing zinc
Patent holdings for IPC class C03C 8/04
Total number of patents in this class: 433
10-year publication summary
|
35
|
34
|
35
|
40
|
38
|
30
|
26
|
21
|
18
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Electric Glass Co., Ltd. | 2471 |
38 |
| SCHOTT AG | 1708 |
24 |
| Saint-Gobain Glass France | 3247 |
20 |
| Guardian Glass, LLC | 572 |
20 |
| Ferro Corporation | 237 |
18 |
| LG Electronics Inc. | 73690 |
16 |
| Corning Incorporated | 10327 |
12 |
| Nihon Yamamura Glass Co., Ltd. | 132 |
12 |
| Central Glass Company, Limited | 1274 |
10 |
| Shoei Chemical Inc. | 326 |
10 |
| Fenzi AGT Netherlands B.V. | 18 |
10 |
| Asahi Glass Company, Limited | 2758 |
9 |
| Shindengen Electric Manufacturing Co., Ltd. | 825 |
9 |
| E. I. du Pont de Nemours and Company | 3975 |
8 |
| Changzhou Fusion New Material Co., Ltd. | 56 |
8 |
| Guardian Industries Corp. | 332 |
7 |
| Monalisa Group Co., Ltd. | 38 |
7 |
| Johnson Matthey Public Limited Company | 1875 |
6 |
| Agc, Inc. | 4944 |
6 |
| Eurokera S.N.C. | 152 |
5 |
| Other owners | 178 |