- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/84 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing rare earth metals containing sulfur, e.g. oxysulfides
Patent holdings for IPC class C09K 11/84
Total number of patents in this class: 80
10-year publication summary
|
6
|
3
|
0
|
4
|
5
|
2
|
1
|
2
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toshiba Materials Co., Ltd. | 564 |
19 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6181 |
18 |
| Mitsubishi Chemical Corporation | 4721 |
3 |
| Hitachi Metals, Ltd. | 1900 |
2 |
| Mitsui Mining & Smelting Co., Ltd. | 1100 |
2 |
| Nemoto & Co., Ltd. | 23 |
2 |
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
2 |
| Solvay SA | 945 |
2 |
| Siemens AG | 24033 |
1 |
| Honeywell International Inc. | 12778 |
1 |
| Bayer Intellectual Property GmbH | 2379 |
1 |
| Koninklijke Philips Electronics N.V. | 7494 |
1 |
| Konica Minolta Medical & Graphic, Inc. | 597 |
1 |
| Toray Industries, Inc. | 7096 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1654 |
1 |
| Daiken Chemical Co., Ltd. | 8 |
1 |
| Dalian Luminglight Co., Ltd. | 10 |
1 |
| G.I.P.C. Holdings Ltd. | 1 |
1 |
| Intelligent Material Solutions, Inc. | 43 |
1 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2831 |
1 |
| Other owners | 18 |