- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 11/61 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing fluorine, chlorine, bromine, iodine or unspecified halogen elements
Patent holdings for IPC class C09K 11/61
Total number of patents in this class: 721
10-year publication summary
|
77
|
68
|
73
|
62
|
54
|
42
|
46
|
53
|
49
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3394 |
71 |
| General Electric Company | 18133 |
58 |
| Konica Minolta Medical & Graphic, Inc. | 986 |
48 |
| Current Lighting Solutions, LLC f/k/a GE Lighting Solutions, LLC | 417 |
48 |
| Denka Company Limited | 2189 |
34 |
| Samsung Electronics Co., Ltd. | 131630 |
27 |
| Current Lighting Solutions, LLC | 216 |
22 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
19 |
| Koito Manufacturing Co., Ltd. | 1991 |
13 |
| Intematix Corporation | 223 |
11 |
| National Institute for Materials Science | 1108 |
11 |
| Toshiba Materials Co., Ltd. | 600 |
10 |
| Seoul Semiconductor Co., Ltd. | 1073 |
8 |
| Tohoku University | 2526 |
8 |
| Avantama AG | 43 |
8 |
| Toshiba Corporation | 12017 |
7 |
| GE Lighting Solutions, LLC | 179 |
7 |
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
7 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
7 |
| The Regents of the University of California | 18943 |
6 |
| Other owners | 291 |