- 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: 212
10-year publication summary
|
20
|
19
|
8
|
9
|
8
|
17
|
10
|
8
|
11
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10558 |
34 |
| Nippon Electric Glass Co., Ltd. | 2571 |
17 |
| Heraeus Quarzglas GmbH & Co. KG | 416 |
15 |
| Agc, Inc. | 5664 |
13 |
| Nipro Corporation | 1053 |
9 |
| Canon Kabushiki Kaisha | 7417 |
7 |
| Asahi Glass Company, Limited | 2586 |
6 |
| Owens-Brockway Glass Container Inc. | 804 |
6 |
| SCHOTT AG | 1749 |
6 |
| Shin-Etsu Quartz Products Co., Ltd. | 143 |
5 |
| Nikon Corporation | 7226 |
4 |
| Ivoclar Vivadent AG | 1032 |
4 |
| Hoya Corporation | 2400 |
3 |
| Centre National de La Recherche Scientifique | 11133 |
2 |
| Seiko Epson Corporation | 20536 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 6157 |
2 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8470 |
2 |
| Carl Zeiss SMT GmbH | 3377 |
2 |
| Aalborg Universitet | 177 |
2 |
| DENTSPLY SIRONA Inc. | 1809 |
2 |
| Other owners | 69 |