- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/77 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing rare earth metals
Patent holdings for IPC class C09K 11/77
Total number of patents in this class: 2630
10-year publication summary
|
223
|
194
|
231
|
180
|
182
|
189
|
151
|
135
|
90
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3797 |
180 |
| OSRAM Opto Semiconductors GmbH | 3277 |
88 |
| Denka Company Limited | 2680 |
58 |
| Panasonic Intellectual Property Management Co., Ltd. | 33033 |
49 |
| OSRAM OLED GmbH | 1757 |
48 |
| Lumileds Singapore Pte. Ltd. | 1260 |
48 |
| Merck Patent GmbH | 5729 |
47 |
| National Institute for Materials Science | 1090 |
47 |
| Seoul Semiconductor Co., Ltd. | 1071 |
45 |
| Koninklijke Philips Electronics N.V. | 8343 |
39 |
| OSRAM GmbH | 2330 |
38 |
| Intematix Corporation | 193 |
37 |
| Samsung Electronics Co., Ltd. | 151726 |
36 |
| Koninklijke Philips N.V. | 25385 |
33 |
| Philips Intellectual Property & Standards GmbH | 1766 |
33 |
| Signify Holding B.V. | 7801 |
32 |
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
31 |
| Mitsubishi Chemical Corporation | 4671 |
30 |
| General Electric Company | 13777 |
24 |
| Luxium Solutions, LLC | 122 |
24 |
| Other owners | 1663 |