- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/85 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing rare earth metals containing halogen
Patent holdings for IPC class C09K 11/85
Total number of patents in this class: 149
10-year publication summary
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6
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8
|
8
|
4
|
8
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7
|
7
|
8
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2
|
1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| National Institute for Materials Science | 1086 |
8 |
| Mitsubishi Chemical Corporation | 4723 |
7 |
| Tohoku University | 2981 |
7 |
| Tokuyama Corporation | 1481 |
7 |
| Sumitomo Chemical Company, Limited | 8968 |
6 |
| Grirem Advanced Materials Co., Ltd. | 140 |
4 |
| Schlumberger Canada Limited | 7601 |
3 |
| Schlumberger Technology B.v. | 5295 |
3 |
| Schlumberger Holdings Limited | 2694 |
3 |
| Prad Research and Development Limited | 2658 |
3 |
| Saint-Gobain Ceramics & Plastics, Inc. | 806 |
3 |
| Services Petroliers Schlumberger | 6023 |
3 |
| General Electric Company | 13910 |
2 |
| Centre National de La Recherche Scientifique | 11026 |
2 |
| Koninklijke Philips Electronics N.V. | 7398 |
2 |
| Siemens Medical Solutions USA, Inc. | 1468 |
2 |
| Nichia Corporation | 3876 |
2 |
| Fujian Institute of Research on The Structure of Matter, Chinese Academy of Sciences | 104 |
2 |
| Hong Kong Baptist University | 69 |
2 |
| Shenzhen Institutes of Advanced Technology | 1528 |
2 |
| Other owners | 76 |