- All sections
- C - Chemistrymetallurgy
- C03C - Chemical composition of glasses, glazes or vitreous enamelssurface treatment of glasssurface treatment of fibres or filaments made from glass, minerals or slagsjoining glass to glass or other materials
- C03C 3/15 - Silica-free oxide glass compositions containing boron containing rare earths
Patent holdings for IPC class C03C 3/15
Total number of patents in this class: 126
10-year publication summary
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4
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8
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10
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9
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10
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6
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5
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7
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8
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1
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| 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. | 2464 |
25 |
| Ohara Inc. | 214 |
21 |
| Hoya Corporation | 2755 |
19 |
| Corning Incorporated | 10284 |
10 |
| Nikon Corporation | 7172 |
7 |
| Asahi Glass Company, Limited | 2771 |
7 |
| Agc, Inc. | 4879 |
7 |
| The University of Tokyo | 4193 |
4 |
| CDGM Glass Co., Ltd | 138 |
3 |
| D. Swarovski KG | 103 |
2 |
| SCHOTT Glass Technologies (Suzhou) Co. Ltd. | 102 |
2 |
| X-Ray Flux Pty Ltd | 2 |
2 |
| Canon Inc. | 40165 |
1 |
| Hitachi, Ltd. | 15521 |
1 |
| Koninklijke Philips Electronics N.V. | 9495 |
1 |
| Konica Minolta Opto, Inc. | 1071 |
1 |
| The Curators of the University of Missouri | 1049 |
1 |
| HORIBA STEC, Co., Ltd. | 339 |
1 |
| Johnson Matthey Public Limited Company | 1866 |
1 |
| Kennesaw State University Research and Service Foundation, Inc. | 19 |
1 |
| Other owners | 9 |