- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 32/159 - Carbon nanotubes single-walled
Patent holdings for IPC class C01B 32/159
Total number of patents in this class: 266
10-year publication summary
|
1
|
8
|
23
|
35
|
50
|
28
|
38
|
26
|
31
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 3989 |
27 |
| NEC Corporation | 34337 |
12 |
| National Research Council of Canada | 1567 |
11 |
| National Institute of Advanced Industrial Science and Technology | 3730 |
9 |
| Kao Corporation | 4903 |
7 |
| Advanced Material Development Limited | 19 |
6 |
| Honda Motor Co., Ltd. | 24865 |
5 |
| FUJIFILM Corporation | 28506 |
5 |
| Toray Industries, Inc. | 6843 |
4 |
| Lintec of America, Inc. | 158 |
4 |
| Meijo Nano Carbon Co., Ltd. | 26 |
4 |
| Nano-C, Inc. | 71 |
4 |
| LG Chem, Ltd. | 17632 |
3 |
| Hon Hai Precision Industry Co., Ltd. | 4046 |
3 |
| Wisconsin Alumni Research Foundation | 3819 |
3 |
| Tsinghua University | 5690 |
3 |
| Mitsui Chemicals, Inc. | 3187 |
3 |
| Dalian University of Technology | 1448 |
3 |
| NanoSynthesis Plus, Ltd. | 9 |
3 |
| National Institute for Materials Science | 1107 |
3 |
| Other owners | 144 |