- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/65 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing carbon
Patent holdings for IPC class C09K 11/65
Total number of patents in this class: 370
10-year publication summary
|
18
|
29
|
28
|
23
|
37
|
36
|
36
|
38
|
28
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kureha Corporation | 1022 |
14 |
| Schlumberger Technology Corporation | 10673 |
11 |
| Daicel Corporation | 2335 |
9 |
| Schlumberger Canada Limited | 7283 |
8 |
| Nissan Chemical Industries, Ltd. | 1720 |
7 |
| Samsung Electronics Co., Ltd. | 145416 |
6 |
| Adámas Nanotechnologies Inc. | 11 |
6 |
| King Fahd University of Petroleum and Minerals | 1170 |
6 |
| Saudi Arabian Oil Company | 12997 |
6 |
| Schlumberger Technology B.v. | 5164 |
5 |
| Cornell University | 3297 |
5 |
| Services Petroliers Schlumberger | 5775 |
5 |
| Championx LLC | 494 |
5 |
| Korea Institute of Science and Technology | 2115 |
4 |
| Korea Advanced Institute of Science and Technology | 4364 |
4 |
| Beijing Normal University | 94 |
4 |
| Dotz Nano Limited | 6 |
4 |
| Sony Corporation | 31093 |
3 |
| University of South Florida | 1817 |
3 |
| Dexerials Corporation | 1962 |
3 |
| Other owners | 252 |