- 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 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: 470
10-year publication summary
|
43
|
34
|
56
|
35
|
42
|
38
|
26
|
43
|
48
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 9932 |
127 |
| Asahi Glass Company, Limited | 2985 |
31 |
| AGC Glass Europe | 1049 |
26 |
| SCHOTT AG | 1675 |
23 |
| Owens-Brockway Glass Container Inc. | 716 |
21 |
| Agc, Inc. | 4029 |
20 |
| Nippon Electric Glass Co., Ltd. | 2299 |
12 |
| Vidrio Plano de Mexico, S.A. de C.V. | 40 |
12 |
| Eurokera S.N.C. | 158 |
10 |
| Saint-Gobain Glass France | 3641 |
9 |
| Vitro Flat Glass LLC | 419 |
9 |
| PPG Industries Ohio, Inc. | 3430 |
7 |
| CDGM Glass Co., Ltd | 124 |
7 |
| Eurokera | 46 |
6 |
| Ferro Corporation | 279 |
6 |
| Pilkington Group Limited | 748 |
6 |
| Ivoclar Vivadent AG | 1060 |
5 |
| KOA Glass Co., Ltd. | 39 |
5 |
| Nippon Sheet Glass Company, Limited | 992 |
5 |
| Hoya Corporation | 2822 |
4 |
| Other owners | 119 |