- 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 23/047 - Re-forming tubes or rods by drawing
Patent holdings for IPC class C03B 23/047
Total number of patents in this class: 77
10-year publication summary
|
9
|
8
|
7
|
6
|
4
|
5
|
3
|
2
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Heraeus Quarzglas GmbH & Co. KG | 410 |
16 |
| Corning Incorporated | 10152 |
13 |
| SCHOTT AG | 1678 |
6 |
| Shin-Etsu Chemical Co., Ltd. | 5471 |
5 |
| Nippon Electric Glass Co., Ltd. | 2404 |
5 |
| Shin-Etsu Quartz Products Co., Ltd. | 154 |
4 |
| Beckman Coulter, Inc. | 1227 |
3 |
| Heraeus Quartz America LLC | 7 |
2 |
| Nihon Yamamura Glass Co., Ltd. | 137 |
2 |
| Heraeus Quartz North America LLC | 26 |
2 |
| Vidya Holdings Ltd | 31 |
2 |
| L'OREAL, Société Anonyme | 15142 |
1 |
| NEC Corporation | 34584 |
1 |
| Sumitomo Electric Industries, Ltd. | 15033 |
1 |
| Konica Minolta, Inc. | 8561 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4829 |
1 |
| OSRAM GmbH | 2408 |
1 |
| The Furukawa Electric Co., Ltd. | 3605 |
1 |
| Boraident GmbH | 11 |
1 |
| Corning Optical Communications LLC | 1711 |
1 |
| Other owners | 8 |