- 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 23/20 - Uniting glass pieces by fusing without substantial reshaping
Patent holdings for IPC class C03B 23/20
Total number of patents in this class: 128
10-year publication summary
|
9
|
12
|
10
|
2
|
12
|
5
|
5
|
7
|
7
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10504 |
21 |
| SCHOTT AG | 1738 |
10 |
| Apple Inc. | 58742 |
4 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5257 |
4 |
| Heraeus Quarzglas GmbH & Co. KG | 417 |
4 |
| JENOPTIK Optical Systems GmbH | 200 |
3 |
| Nantong Schmidt Opto-electrical Technology Co. Ltd. | 34 |
3 |
| SRI International | 992 |
3 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6117 |
3 |
| Vitalink Technology Co.,Ltd. | 11 |
3 |
| Samsung Electronics Co., Ltd. | 157719 |
2 |
| Medtronic, Inc. | 9792 |
2 |
| The United States of America as represented by the Secretary of the Navy | 2858 |
2 |
| Lam Research Corporation | 5635 |
2 |
| Carl Zeiss SMT GmbH | 3332 |
2 |
| Corning Optical Communications LLC | 1270 |
2 |
| Globalwafers Co., Ltd. | 730 |
2 |
| HASS Co., Ltd. | 65 |
2 |
| Shin-Etsu Quartz Products Co., Ltd. | 144 |
2 |
| TRUMPF Laser- und Systemtechnik GmbH | 524 |
2 |
| Other owners | 50 |