- 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: 290
10-year publication summary
|
1
|
8
|
22
|
34
|
49
|
25
|
36
|
26
|
31
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 4116 |
28 |
| NEC Corporation | 36282 |
12 |
| National Research Council of Canada | 1559 |
12 |
| National Institute of Advanced Industrial Science and Technology | 3798 |
9 |
| Kao Corporation | 5006 |
7 |
| Meijo Nano Carbon Co., Ltd. | 33 |
6 |
| Advanced Material Development Limited | 26 |
6 |
| Honda Motor Co., Ltd. | 25784 |
5 |
| FUJIFILM Corporation | 29839 |
5 |
| Massachusetts Institute of Technology | 10150 |
4 |
| Toray Industries, Inc. | 7015 |
4 |
| Lintec of America, Inc. | 159 |
4 |
| Nano-C, Inc. | 72 |
4 |
| Tohoku University | 2849 |
4 |
| University of Maryland, College Park | 1030 |
4 |
| LG Chem, Ltd. | 17706 |
3 |
| Hon Hai Precision Industry Co., Ltd. | 4024 |
3 |
| Wisconsin Alumni Research Foundation | 3894 |
3 |
| Tsinghua University | 6023 |
3 |
| Mitsui Chemicals, Inc. | 3230 |
3 |
| Other owners | 161 |