- All sections
- D - Textilespaper
- D01F - Chemical features in the manufacture of man-made filaments, threads, fibres, bristles or ribbonsapparatus specially adapted for the manufacture of carbon filaments
- D01F 9/127 - Carbon filamentsApparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours
Patent holdings for IPC class D01F 9/127
Total number of patents in this class: 342
10-year publication summary
|
23
|
17
|
18
|
19
|
10
|
8
|
14
|
9
|
7
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Machinery, Ltd. | 1513 |
14 |
| Massachusetts Institute of Technology | 10115 |
13 |
| Showa Denko K.K. | 2196 |
12 |
| Mitsui & Co., Ltd. | 65 |
12 |
| Sumitomo Electric Industries, Ltd. | 15647 |
10 |
| Bussan Nanotech Research Institute, Inc. | 16 |
10 |
| University of Tsukuba | 621 |
9 |
| Board of Regents, The University of Texas System | 5869 |
8 |
| Denka Company Limited | 2629 |
7 |
| Nanocomp Technologies, Inc. | 100 |
6 |
| Zeon Corporation | 4113 |
6 |
| LG Chem, Ltd. | 17676 |
5 |
| Hon Hai Precision Industry Co., Ltd. | 4031 |
5 |
| Tsinghua University | 5966 |
5 |
| The Furukawa Electric Co., Ltd. | 3704 |
5 |
| Fujitsu Limited | 18087 |
4 |
| National Institute of Advanced Industrial Science and Technology | 3799 |
4 |
| Dynetics, Inc. | 13 |
4 |
| Hazer Group Ltd | 15 |
4 |
| Hodogaya Chemical Co., Ltd. | 434 |
4 |
| Other owners | 195 |