- 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: 387
10-year publication summary
|
29
|
28
|
23
|
37
|
36
|
37
|
38
|
29
|
34
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 11798 |
16 |
| Kureha Corporation | 1059 |
15 |
| Schlumberger Canada Limited | 7606 |
9 |
| Daicel Corporation | 2508 |
9 |
| King Fahd University of Petroleum and Minerals | 1569 |
7 |
| Nissan Chemical Industries, Ltd. | 1646 |
7 |
| Samsung Electronics Co., Ltd. | 157557 |
6 |
| Schlumberger Technology B.v. | 5298 |
6 |
| Saudi Arabian Oil Company | 14207 |
6 |
| Services Petroliers Schlumberger | 6024 |
6 |
| Championx LLC | 633 |
6 |
| Cornell University | 3421 |
5 |
| Korea Institute of Science and Technology | 2248 |
4 |
| Korea Advanced Institute of Science and Technology | 4664 |
4 |
| Adámas Nanotechnologies Inc. | 9 |
4 |
| Beijing Normal University | 107 |
4 |
| Dotz Nano Limited | 6 |
4 |
| Sony Corporation | 30208 |
3 |
| University of South Florida | 1878 |
3 |
| Dexerials Corporation | 2005 |
3 |
| Other owners | 260 |