- All sections
- C - Chemistry; metallurgy
- C03B - Manufacture or shaping of glass, or of mineral or slag wool; supplementary processes in the manufacture or shaping of glass, or of mineral or slag wool
- C03B 27/04 - Tempering glass products using gas
Patent holdings for IPC class C03B 27/04
Total number of patents in this class: 168
10-year publication summary
|
12
|
16
|
27
|
9
|
26
|
24
|
20
|
20
|
14
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 9932 |
36 |
| Saint-Gobain Glass France | 3641 |
34 |
| Luoyang Landglass Technology Co., Ltd | 93 |
10 |
| Agc, Inc. | 4029 |
10 |
| Glasstech, Inc. | 131 |
9 |
| Glaston Finland Oy | 14 |
8 |
| Pilkington Group Limited | 748 |
7 |
| Asahi Glass Company, Limited | 2985 |
5 |
| Cardinal IG Company | 147 |
4 |
| Nippon Sheet Glass Company, Limited | 992 |
4 |
| O'keeffe's, Inc. | 67 |
4 |
| Taifin Glass Machinery Oy | 4 |
4 |
| SCHOTT AG | 1675 |
3 |
| Guardian Industries Corp. | 392 |
2 |
| Jiangsu Xiuqiang Glasswork Co., Ltd. | 4 |
2 |
| sedak GmbH & Co. KG | 39 |
2 |
| AGC Glass Europe | 1049 |
1 |
| PPG Industries Ohio, Inc. | 3430 |
1 |
| JPMorgan Chase Bank, National Association | 10964 |
1 |
| AGP America S.A. | 129 |
1 |
| Other owners | 20 |