- 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 5/027 - Melting in furnacesFurnaces so far as specially adapted for glass manufacture in electric furnaces by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
Patent holdings for IPC class C03B 5/027
Total number of patents in this class: 123
10-year publication summary
|
6
|
6
|
10
|
9
|
12
|
14
|
12
|
5
|
8
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Electric Glass Co., Ltd. | 2454 |
22 |
| Corning Incorporated | 10258 |
17 |
| SCHOTT AG | 1713 |
12 |
| AvanStrate Inc. | 108 |
7 |
| InEnTec Inc. | 35 |
7 |
| The Corning Museum of Glass | 12 |
5 |
| Saint-Gobain Isover | 632 |
5 |
| Spiral Arts Inc | 5 |
5 |
| Veolia Nuclear Solutions Inc. | 61 |
5 |
| H.C. Starck Solutions Coldwater, LLC | 27 |
3 |
| Hoya Corporation | 2745 |
2 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3974 |
2 |
| Nitto Boseki Co., Ltd. | 289 |
2 |
| PLANSEE SE | 233 |
2 |
| Rockwool A/S | 782 |
2 |
| Agc, Inc. | 4820 |
2 |
| Caihong Display Devices Co.,Ltd. | 49 |
2 |
| (cnbm) Bengbu Design & Research Institute for Glass Industry Co., Ltd | 29 |
2 |
| Bengbu China Optoelectronic Technology Co., Ltd | 11 |
2 |
| Harbison Walker International Holdings, Inc. | 3 |
2 |
| Other owners | 15 |