- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 11/64 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing aluminium
Patent holdings for IPC class C09K 11/64
Total number of patents in this class: 1032
10-year publication summary
64
|
53
|
45
|
57
|
68
|
64
|
50
|
59
|
47
|
7
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Denka Company Limited | 2189 |
94 |
National Institute for Materials Science | 1108 |
75 |
Denki Kagaku Kogyo Kabushiki Kaisha | 680 |
62 |
Nichia Corporation | 3394 |
56 |
Mitsubishi Chemical Corporation | 4313 |
32 |
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
30 |
Toshiba Materials Co., Ltd. | 600 |
26 |
Sumitomo Chemical Company, Limited | 8808 |
22 |
Sharp Kabushiki Kaisha | 18957 |
22 |
Nippon Electric Glass Co., Ltd. | 2299 |
18 |
Ube Industries, Ltd. | 921 |
18 |
National Institute of Advanced Industrial Science and Technology | 3677 |
17 |
General Electric Company | 18133 |
16 |
OSRAM Opto Semiconductors GmbH | 3390 |
16 |
Samsung Electronics Co., Ltd. | 131630 |
15 |
Seoul Semiconductor Co., Ltd. | 1073 |
15 |
Tohoku University | 2526 |
13 |
Panasonic Corporation | 20786 |
12 |
OSRAM GmbH | 2442 |
12 |
Current Lighting Solutions, LLC f/k/a GE Lighting Solutions, LLC | 417 |
12 |
Other owners | 449 |