- 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 5/225 - Refining
Patent holdings for IPC class C03B 5/225
Total number of patents in this class: 341
10-year publication summary
|
21
|
10
|
26
|
19
|
47
|
22
|
21
|
22
|
19
|
8
|
| 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. | 799 |
77 |
| Corning Incorporated | 10504 |
49 |
| Asahi Glass Company, Limited | 2606 |
34 |
| Nippon Electric Glass Co., Ltd. | 2558 |
24 |
| SCHOTT AG | 1748 |
21 |
| AGC Glass Europe | 1183 |
18 |
| AvanStrate Inc. | 104 |
18 |
| Agc, Inc. | 5577 |
18 |
| Johns Manville | 922 |
17 |
| Beteiligungen Sorg GmbH & Co. KG | 49 |
4 |
| Vitro Flat Glass LLC | 516 |
4 |
| Bengbu China Optoelectronic Technology Co., Ltd | 15 |
4 |
| Cnbm Research Institute for Advanced Glass Materials Group Co., Ltd. | 91 |
4 |
| Avanstrate Korea Inc. | 14 |
3 |
| China Building Materials Academy | 26 |
3 |
| Caihong Display Devices Co.,Ltd. | 77 |
3 |
| Air Products and Chemicals, Inc. | 1469 |
2 |
| Gas Technology Institute | 334 |
2 |
| Nitto Boseki Co., Ltd. | 302 |
2 |
| Verallia Packaging | 24 |
2 |
| Other owners | 32 |