- 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: 2627
10-year publication summary
|
238
|
223
|
194
|
231
|
179
|
182
|
187
|
152
|
135
|
64
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3713 |
181 |
| OSRAM Opto Semiconductors GmbH | 3311 |
87 |
| Denka Company Limited | 2590 |
58 |
| Koninklijke Philips Electronics N.V. | 9542 |
49 |
| Panasonic Intellectual Property Management Co., Ltd. | 31562 |
49 |
| National Institute for Materials Science | 1104 |
48 |
| OSRAM OLED GmbH | 1776 |
48 |
| Lumileds Singapore Pte. Ltd. | 1275 |
48 |
| Merck Patent GmbH | 5815 |
47 |
| Seoul Semiconductor Co., Ltd. | 1081 |
46 |
| Philips Intellectual Property & Standards GmbH | 1915 |
43 |
| OSRAM GmbH | 2382 |
39 |
| Intematix Corporation | 203 |
38 |
| Samsung Electronics Co., Ltd. | 146811 |
36 |
| Koninklijke Philips N.V. | 24767 |
33 |
| Mitsubishi Chemical Corporation | 4525 |
31 |
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
31 |
| Signify Holding B.V. | 7580 |
28 |
| General Electric Company | 13810 |
24 |
| Grirem Advanced Materials Co., Ltd. | 134 |
23 |
| Other owners | 1640 |