- 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 32/00 - Thermal after-treatment of glass products not provided for in groups , e.g. crystallisation, eliminating gas inclusions or other impurities
Patent holdings for IPC class C03B 32/00
Total number of patents in this class: 204
10-year publication summary
|
22
|
20
|
19
|
8
|
9
|
8
|
17
|
10
|
8
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10152 |
32 |
| Nippon Electric Glass Co., Ltd. | 2404 |
18 |
| Heraeus Quarzglas GmbH & Co. KG | 410 |
16 |
| Agc, Inc. | 4520 |
11 |
| Nipro Corporation | 1021 |
9 |
| Asahi Glass Company, Limited | 2872 |
7 |
| Canon Kabushiki Kaisha | 6963 |
7 |
| Owens-Brockway Glass Container Inc. | 737 |
6 |
| SCHOTT AG | 1678 |
6 |
| Shin-Etsu Quartz Products Co., Ltd. | 154 |
5 |
| Nikon Corporation | 7120 |
4 |
| Ivoclar Vivadent AG | 1055 |
4 |
| Hoya Corporation | 2748 |
3 |
| Seiko Epson Corporation | 19030 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5471 |
2 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8482 |
2 |
| Carl Zeiss SMT GmbH | 2836 |
2 |
| Aalborg Universitet | 172 |
2 |
| Ceramext, LLC | 7 |
2 |
| DENTSPLY SIRONA Inc. | 1874 |
2 |
| Other owners | 62 |