- All sections
- C - Chemistrymetallurgy
- C03B - Manufacture or shaping of glass, or of mineral or slag woolsupplementary processes in the manufacture or shaping of glass, or of mineral or slag wool
- C03B 18/20 - Composition of the atmosphere above the float bathTreating or purifying the atmosphere above the float bath
Patent holdings for IPC class C03B 18/20
Total number of patents in this class: 62
10-year publication summary
|
2
|
2
|
2
|
4
|
3
|
4
|
2
|
3
|
2
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Asahi Glass Company, Limited | 2606 |
25 |
| Air Products and Chemicals, Inc. | 1469 |
6 |
| SCHOTT AG | 1748 |
4 |
| Agc, Inc. | 5577 |
4 |
| Corning Incorporated | 10504 |
3 |
| Nippon Sheet Glass Company, Limited | 957 |
3 |
| Pilkington Group Limited | 776 |
3 |
| China Triumph International Engineering Co., Ltd. | 93 |
2 |
| Fives North American Combustion, Inc. | 47 |
2 |
| Vitro Flat Glass LLC | 516 |
2 |
| Ohmium International, Inc. | 130 |
2 |
| China National Building Material Group Co., Ltd. | 153 |
2 |
| Guardian Glass, LLC | 564 |
1 |
| Bengbu China Optoelectronic Technology Co., Ltd | 15 |
1 |
| Triumph Science & Technology Group Co., Ltd | 24 |
1 |
| Cnbm Research Institute for Advanced Glass Materials Group Co., Ltd. | 91 |
1 |
| Other owners | 0 |