- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications 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: 325
10-year publication summary
|
18
|
18
|
29
|
28
|
23
|
37
|
35
|
35
|
35
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kureha Corporation | 1026 |
10 |
| Schlumberger Technology Corporation | 9690 |
7 |
| Daicel Corporation | 2128 |
7 |
| Nissan Chemical Industries, Ltd. | 1822 |
7 |
| Samsung Electronics Co., Ltd. | 131630 |
6 |
| Schlumberger Canada Limited | 6913 |
5 |
| Schlumberger Technology B.v. | 4951 |
5 |
| Adámas Nanotechnologies Inc. | 9 |
5 |
| Cornell University | 3036 |
5 |
| Saudi Arabian Oil Company | 11322 |
5 |
| Services Petroliers Schlumberger | 5426 |
5 |
| Korea Institute of Science and Technology | 2022 |
4 |
| Korea Advanced Institute of Science and Technology | 3906 |
4 |
| Beijing Normal University | 86 |
4 |
| National Institute for Materials Science | 1108 |
4 |
| Dotz Nano Limited | 6 |
4 |
| Sony Corporation | 32931 |
3 |
| Dexerials Corporation | 1826 |
3 |
| Diamond Innovations, Inc. | 241 |
3 |
| Institut National de La Recherche Scientifique | 246 |
3 |
| Other owners | 226 |