- 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 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: 148
10-year publication summary
|
14
|
14
|
12
|
11
|
15
|
9
|
10
|
4
|
7
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Owens-Brockway Glass Container Inc. | 716 |
27 |
| Asahi Glass Company, Limited | 2985 |
16 |
| Rockwool A/S | 753 |
13 |
| Johns Manville | 980 |
12 |
| ROCKWOOL International A/S | 323 |
9 |
| Praxair Technology, Inc. | 1367 |
8 |
| AGC Glass Europe | 1049 |
6 |
| Beteiligungen Sorg GmbH & Co. KG | 45 |
6 |
| Agc, Inc. | 4029 |
6 |
| Corning Incorporated | 9932 |
5 |
| Plasma Tech Holdings, LLC | 29 |
5 |
| Saint-Gobain Isover | 603 |
3 |
| Hoya Corporation | 2822 |
2 |
| Fives Stein | 96 |
2 |
| Nippon Electric Glass Co., Ltd. | 2299 |
2 |
| Saint-Gobain Glass France | 3641 |
2 |
| Vitro Flat Glass LLC | 419 |
2 |
| USB I, LLC | 7 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
| Air Products and Chemicals, Inc. | 1448 |
1 |
| Other owners | 18 |