- 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: 286
10-year publication summary
|
1
|
8
|
23
|
35
|
50
|
28
|
38
|
26
|
31
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 4080 |
28 |
| NEC Corporation | 35567 |
12 |
| National Research Council of Canada | 1550 |
12 |
| National Institute of Advanced Industrial Science and Technology | 3799 |
9 |
| Kao Corporation | 4964 |
7 |
| Advanced Material Development Limited | 20 |
6 |
| Honda Motor Co., Ltd. | 25192 |
5 |
| FUJIFILM Corporation | 29329 |
5 |
| Meijo Nano Carbon Co., Ltd. | 30 |
5 |
| Toray Industries, Inc. | 6935 |
4 |
| Lintec of America, Inc. | 156 |
4 |
| Nano-C, Inc. | 72 |
4 |
| Tohoku University | 2776 |
4 |
| University of Maryland, College Park | 1013 |
4 |
| LG Chem, Ltd. | 17615 |
3 |
| Hon Hai Precision Industry Co., Ltd. | 4040 |
3 |
| Massachusetts Institute of Technology | 10041 |
3 |
| Wisconsin Alumni Research Foundation | 3874 |
3 |
| Tsinghua University | 5907 |
3 |
| Mitsui Chemicals, Inc. | 3220 |
3 |
| Other owners | 159 |