- 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 4/02 - Compositions for glass with special properties for coloured glass
Patent holdings for IPC class C03C 4/02
Total number of patents in this class: 496
10-year publication summary
|
34
|
56
|
35
|
44
|
38
|
27
|
43
|
49
|
38
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10246 |
139 |
| Asahi Glass Company, Limited | 2802 |
31 |
| SCHOTT AG | 1716 |
28 |
| AGC Glass Europe | 1127 |
26 |
| Owens-Brockway Glass Container Inc. | 760 |
22 |
| Agc, Inc. | 4809 |
21 |
| Vitro Flat Glass LLC | 455 |
14 |
| Vidrio Plano de Mexico, S.A. de C.V. | 41 |
13 |
| Nippon Electric Glass Co., Ltd. | 2453 |
12 |
| Eurokera S.N.C. | 153 |
10 |
| Saint-Gobain Glass France | 3766 |
9 |
| CDGM Glass Co., Ltd | 137 |
8 |
| Eurokera | 46 |
6 |
| Hoya Corporation | 2745 |
5 |
| PPG Industries Ohio, Inc. | 3456 |
5 |
| Ferro Corporation | 244 |
5 |
| Ivoclar Vivadent AG | 1049 |
5 |
| KOA Glass Co., Ltd. | 37 |
5 |
| Nippon Sheet Glass Company, Limited | 998 |
5 |
| Pilkington Group Limited | 775 |
5 |
| Other owners | 122 |