- 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: 2629
10-year publication summary
|
226
|
195
|
236
|
185
|
185
|
192
|
155
|
138
|
90
|
59
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3889 |
187 |
| OSRAM Opto Semiconductors GmbH | 3235 |
89 |
| Denka Company Limited | 2759 |
58 |
| Panasonic Intellectual Property Management Co., Ltd. | 34471 |
50 |
| Lumileds Singapore Pte. Ltd. | 1261 |
48 |
| Merck Patent GmbH | 5747 |
45 |
| National Institute for Materials Science | 1088 |
45 |
| Seoul Semiconductor Co., Ltd. | 1060 |
43 |
| Ams-osram International GmbH | 1695 |
38 |
| OSRAM GmbH | 2186 |
37 |
| OSRAM OLED GmbH | 1388 |
37 |
| Signify Holding B.V. | 8181 |
37 |
| Samsung Electronics Co., Ltd. | 159029 |
36 |
| Intematix Corporation | 175 |
35 |
| Koninklijke Philips N.V. | 26042 |
33 |
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
31 |
| Koninklijke Philips Electronics N.V. | 7172 |
30 |
| Mitsubishi Chemical Corporation | 4746 |
29 |
| Philips Intellectual Property & Standards GmbH | 1576 |
25 |
| General Electric Company | 13982 |
24 |
| Other owners | 1672 |