- 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 3/02 - Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet
Patent holdings for IPC class C03B 3/02
Total number of patents in this class: 161
10-year publication summary
|
12
|
11
|
15
|
9
|
10
|
4
|
7
|
16
|
10
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Owens-Brockway Glass Container Inc. | 796 |
27 |
| Asahi Glass Company, Limited | 2654 |
14 |
| Rockwool A/S | 825 |
13 |
| AGC Glass Europe | 1158 |
12 |
| Johns Manville | 924 |
11 |
| Praxair Technology, Inc. | 1234 |
9 |
| ROCKWOOL International A/S | 290 |
9 |
| Agc, Inc. | 5383 |
9 |
| Beteiligungen Sorg GmbH & Co. KG | 48 |
6 |
| Corning Incorporated | 10463 |
4 |
| Nippon Electric Glass Co., Ltd. | 2516 |
4 |
| Air Products and Chemicals, Inc. | 1468 |
3 |
| Vitro Flat Glass LLC | 503 |
3 |
| Heat IP Holdco, LLC | 49 |
3 |
| Hoya Corporation | 2734 |
2 |
| Fives Stein | 108 |
2 |
| Korea Hydro & Nuclear Power Co., Ltd. | 538 |
2 |
| Qsil GmbH Quarzschmelze Ilmenau | 7 |
2 |
| Saint-Gobain Isover | 668 |
2 |
| USB I, LLC | 4 |
2 |
| Other owners | 22 |