- 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 18/20 - Composition of the atmosphere above the float bath; Treating or purifying the atmosphere above the float bath
Patent holdings for IPC class C03B 18/20
Total number of patents in this class: 56
10-year publication summary
|
5
|
2
|
2
|
2
|
4
|
3
|
4
|
2
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Asahi Glass Company, Limited | 2882 |
25 |
| SCHOTT AG | 1673 |
5 |
| Air Products and Chemicals, Inc. | 1435 |
4 |
| Agc, Inc. | 4470 |
4 |
| Corning Incorporated | 10125 |
3 |
| Nippon Sheet Glass Company, Limited | 998 |
3 |
| Pilkington Group Limited | 768 |
3 |
| Vitro Flat Glass LLC | 442 |
3 |
| Ohmium International, Inc. | 117 |
2 |
| Fives North American Combustion, Inc. | 47 |
1 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3599 |
1 |
| Guardian Glass, LLC | 550 |
1 |
| Masten, James William | 6 |
1 |
| Other owners | 0 |