- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/80 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing rare earth metals containing aluminium or gallium
Patent holdings for IPC class C09K 11/80
Total number of patents in this class: 524
10-year publication summary
|
23
|
29
|
33
|
26
|
16
|
20
|
10
|
16
|
23
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 33248 |
36 |
| National Institute for Materials Science | 1089 |
31 |
| Mitsubishi Chemical Corporation | 4684 |
18 |
| Toshiba Materials Co., Ltd. | 595 |
14 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6212 |
14 |
| Nichia Corporation | 3812 |
12 |
| Ube Industries, Ltd. | 798 |
12 |
| Denka Company Limited | 2685 |
11 |
| Panasonic Corporation | 19835 |
10 |
| Koninklijke Philips Electronics N.V. | 8208 |
10 |
| NGK Spark Plug Co., Ltd. | 881 |
10 |
| Grirem Advanced Materials Co., Ltd. | 138 |
10 |
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
10 |
| Sharp Kabushiki Kaisha | 18613 |
9 |
| Philips Intellectual Property & Standards GmbH | 1748 |
9 |
| Nippon Electric Glass Co., Ltd. | 2513 |
8 |
| OSRAM GmbH | 2301 |
7 |
| OSRAM Opto Semiconductors GmbH | 3274 |
7 |
| Samsung Electronics Co., Ltd. | 152716 |
6 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 606 |
6 |
| Other owners | 274 |