- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/159 - Carbon nanotubes single-walled
Patent holdings for IPC class C01B 32/159
Total number of patents in this class: 292
10-year publication summary
|
8
|
22
|
34
|
49
|
25
|
36
|
26
|
31
|
22
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 4122 |
28 |
| NEC Corporation | 36448 |
12 |
| National Research Council of Canada | 1568 |
12 |
| National Institute of Advanced Industrial Science and Technology | 3795 |
9 |
| Kao Corporation | 5027 |
7 |
| Meijo Nano Carbon Co., Ltd. | 35 |
6 |
| Advanced Material Development Limited | 27 |
6 |
| Honda Motor Co., Ltd. | 25773 |
5 |
| FUJIFILM Corporation | 30034 |
5 |
| Massachusetts Institute of Technology | 10172 |
4 |
| Toray Industries, Inc. | 7011 |
4 |
| Lintec of America, Inc. | 159 |
4 |
| Nano-C, Inc. | 72 |
4 |
| Tohoku University | 2873 |
4 |
| University of Maryland, College Park | 1055 |
4 |
| LG Chem, Ltd. | 17737 |
3 |
| Hon Hai Precision Industry Co., Ltd. | 4007 |
3 |
| Wisconsin Alumni Research Foundation | 3918 |
3 |
| Tsinghua University | 6070 |
3 |
| Mitsui Chemicals, Inc. | 3228 |
3 |
| Other owners | 163 |