- All sections
- D - Textiles; paper
- D01F - Chemical features in the manufacture of man-made filaments, threads, fibres, bristles or ribbons; apparatus specially adapted for the manufacture of carbon filaments
- D01F 9/127 - Carbon filaments; Apparatus 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: 370
10-year publication summary
|
25
|
23
|
18
|
18
|
19
|
10
|
8
|
16
|
8
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Showa Denko K.K. | 2539 |
16 |
| Bussan Nanotech Research Institute, Inc. | 41 |
15 |
| Massachusetts Institute of Technology | 9795 |
14 |
| Murata Machinery, Ltd. | 1386 |
14 |
| Mitsui & Co., Ltd. | 60 |
12 |
| Board of Regents, The University of Texas System | 5370 |
8 |
| Sumitomo Electric Industries, Ltd. | 14131 |
7 |
| Denka Company Limited | 2189 |
7 |
| Hon Hai Precision Industry Co., Ltd. | 4157 |
6 |
| Tsinghua University | 5426 |
6 |
| Nanocomp Technologies, Inc. | 101 |
6 |
| Smoltek AB | 48 |
6 |
| Zeon Corporation | 3854 |
6 |
| LG Chem, Ltd. | 17205 |
5 |
| Fujitsu Limited | 19265 |
5 |
| The Furukawa Electric Co., Ltd. | 3486 |
5 |
| Public University Corporation Osaka Prefecture University | 19 |
5 |
| University of Tsukuba | 561 |
5 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
4 |
| Dynetics, Inc. | 14 |
4 |
| Other owners | 214 |